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Thrum eyed Stock Photos and Images
L S of pin & thrum eyed primroses, Primula vulgaris Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-l-s-of-pin-thrum-eyed-primroses-primula-vulgaris-29871722.htmlRMBMGNK6–L S of pin & thrum eyed primroses, Primula vulgaris
Primrose (Primula vulgaris) pin eyed specimen with protruding stigma, as opposed to protruding stamens (known as thrum eyed) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-pin-eyed-specimen-with-protruding-stigma-as-opposed-to-protruding-stamens-known-as-thrum-eyed-image262975399.htmlRMW7RFPF–Primrose (Primula vulgaris) pin eyed specimen with protruding stigma, as opposed to protruding stamens (known as thrum eyed)
Thrum eyed primrose Primula vulgaris in spring Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-thrum-eyed-primrose-primula-vulgaris-in-spring-20307006.htmlRMB511P6–Thrum eyed primrose Primula vulgaris in spring
Primrose (Primula vulgaris), close-up of the spring wildflower flowering during March, England, UK. A thrum-eyed flower type. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-the-spring-wildflower-flowering-during-march-england-uk-a-thrum-eyed-flower-type-image465729364.htmlRM2J1KPFG–Primrose (Primula vulgaris), close-up of the spring wildflower flowering during March, England, UK. A thrum-eyed flower type.
Primrose 'Primula vulgaris'. Close up of centre of a pair of flowers showing thrum eyed centre (anthers) which enables cross pollination in Spring.Aft Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-centre-of-a-pair-of-flowers-showing-thrum-eyed-centre-anthers-which-enables-cross-pollination-in-springaft-image351448635.htmlRF2BBNT8Y–Primrose 'Primula vulgaris'. Close up of centre of a pair of flowers showing thrum eyed centre (anthers) which enables cross pollination in Spring.Aft
Close up of centre of Primrose Primula vulgaris flower showing thrum-eyed centre adaptation to aid cross pollination Spring Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-close-up-of-centre-of-primrose-primula-vulgaris-flower-showing-thrum-23309399.htmlRMB9WRAF–Close up of centre of Primrose Primula vulgaris flower showing thrum-eyed centre adaptation to aid cross pollination Spring
Primrose 'Primula vulgaris'. Close up of centre of flower showing thrum eyed centre (anthers) which enables cross pollination in Spring. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-centre-of-flower-showing-thrum-eyed-centre-anthers-which-enables-cross-pollination-in-spring-image351448576.htmlRF2BBNT6T–Primrose 'Primula vulgaris'. Close up of centre of flower showing thrum eyed centre (anthers) which enables cross pollination in Spring.
An engraving depicting Three types of prímula. A, pin eyed, B thrum eyed, and C, homostye. When Bateson and Gregor investigated these, they found that long styled plants ,with large eye were alvays homostye. 1912 Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/an-engraving-depicting-three-types-of-prmula-a-pin-eyed-b-thrum-eyed-and-c-homostye-when-bateson-and-gregor-investigated-these-they-found-that-long-styled-plants-with-large-eye-were-alvays-homostye-1912-image235258022.htmlRMRJMX06–An engraving depicting Three types of prímula. A, pin eyed, B thrum eyed, and C, homostye. When Bateson and Gregor investigated these, they found that long styled plants ,with large eye were alvays homostye. 1912
Dionysia aretioides flowers. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-dionysia-aretioides-flowers-97152643.htmlRMFJ1K57–Dionysia aretioides flowers.
Primroses (primula vulgaris), close up of a group of thrum-eyed flowers. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primroses-primula-vulgaris-close-up-of-a-group-of-thrum-eyed-flowers-image188960357.htmlRFMYBTT5–Primroses (primula vulgaris), close up of a group of thrum-eyed flowers.
Primrose Primula vulgaris Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-primrose-primula-vulgaris-56018471.htmlRMD73T3K–Primrose Primula vulgaris
Primrose (primula vulgaris), close up of single thrum-eyed flower out of many. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-single-thrum-eyed-flower-out-of-many-image341998677.htmlRF2ATBAPD–Primrose (primula vulgaris), close up of single thrum-eyed flower out of many.
Wild primrose flower, early spring. Primula vulgaris. Thrum eyed. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/wild-primrose-flower-early-spring-primula-vulgaris-thrum-eyed-image239125159.htmlRFRW12G7–Wild primrose flower, early spring. Primula vulgaris. Thrum eyed.
Primrose (primula vulgaris), close up focusing on a single thrum-eyed flower out of many. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-focusing-on-a-single-thrum-eyed-flower-out-of-many-image472206486.htmlRF2JC6T5A–Primrose (primula vulgaris), close up focusing on a single thrum-eyed flower out of many.
Thrum eyed magenta primrose primula vulgaris subspecies sibthorpii Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-thrum-eyed-magenta-primrose-primula-vulgaris-subspecies-sibthorpii-23193123.htmlRFB9MF1R–Thrum eyed magenta primrose primula vulgaris subspecies sibthorpii
Primula vulgaris ‘Danova Yellow with Eye’ yellow primroses with mustard eye, March, England, UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primula-vulgaris-danova-yellow-with-eye-yellow-primroses-with-mustard-eye-march-england-uk-image414211827.htmlRF2F1TYBF–Primula vulgaris ‘Danova Yellow with Eye’ yellow primroses with mustard eye, March, England, UK
Portraits of Cowslip (Primula veris) flowers, pin and thrum eyed, showing heterostyly ie stigma at different positions. This was noted by Darwin an Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/portraits-of-cowslip-primula-veris-flowers-pin-and-thrum-eyed-showing-heterostyly-ie-stigma-at-different-positions-this-was-noted-by-darwin-an-image357525999.htmlRM2BNJM1K–Portraits of Cowslip (Primula veris) flowers, pin and thrum eyed, showing heterostyly ie stigma at different positions. This was noted by Darwin an
Plant-life, with 74 full-page illus., 24 being from photos, by the author and 50 in colour from drawings . styles, while others produce short-styled flowers. The lower portion of the corolla in bothcases is tubular. In the long-styled, or pin-eyed,flowers the stigma appears at the top of the tube, andthe anthers of the stamens are placed about half-waydown. In the short-styled, or thrum-eyed, flowersthe anthers are at the top of the tube, and the stigmareaches only about half-way up. Honey in both kindsof flowers is secreted at the base of the ovary at thebottom of the corolla tube; it can be Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/plant-life-with-74-full-page-illus-24-being-from-photos-by-the-author-and-50-in-colour-from-drawings-styles-while-others-produce-short-styled-flowers-the-lower-portion-of-the-corolla-in-bothcases-is-tubular-in-the-long-styled-or-pin-eyedflowers-the-stigma-appears-at-the-top-of-the-tube-andthe-anthers-of-the-stamens-are-placed-about-half-waydown-in-the-short-styled-or-thrum-eyed-flowersthe-anthers-are-at-the-top-of-the-tube-and-the-stigmareaches-only-about-half-way-up-honey-in-both-kindsof-flowers-is-secreted-at-the-base-of-the-ovary-at-thebottom-of-the-corolla-tube-it-can-be-image339900846.htmlRM2AMYPYX–Plant-life, with 74 full-page illus., 24 being from photos, by the author and 50 in colour from drawings . styles, while others produce short-styled flowers. The lower portion of the corolla in bothcases is tubular. In the long-styled, or pin-eyed,flowers the stigma appears at the top of the tube, andthe anthers of the stamens are placed about half-waydown. In the short-styled, or thrum-eyed, flowersthe anthers are at the top of the tube, and the stigmareaches only about half-way up. Honey in both kindsof flowers is secreted at the base of the ovary at thebottom of the corolla tube; it can be
The Primrose is one of the first springtime plants to flower and are a pretty sight giving colour to the woodlands and cliff tops Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-primrose-is-one-of-the-first-springtime-plants-to-flower-and-are-a-pretty-sight-giving-colour-to-the-woodlands-and-cliff-tops-image358122536.htmlRM2BPHTXG–The Primrose is one of the first springtime plants to flower and are a pretty sight giving colour to the woodlands and cliff tops
Primrose, primula vulgaris, April 2012 Dorset Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-primrose-primula-vulgaris-april-2012-dorset-50482283.htmlRMCX3JJK–Primrose, primula vulgaris, April 2012 Dorset
In early spring the Primrose is one of the earliest flowers to emerge in the grasslands of UK. These are the ancestors of Primulas that gardeners use Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/in-early-spring-the-primrose-is-one-of-the-earliest-flowers-to-emerge-in-the-grasslands-of-uk-these-are-the-ancestors-of-primulas-that-gardeners-use-image418349864.htmlRM2F8HDEG–In early spring the Primrose is one of the earliest flowers to emerge in the grasslands of UK. These are the ancestors of Primulas that gardeners use
Candelabra or Japanese Primrose, Primula Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-candelabra-or-japanese-primrose-primula-28744196.htmlRMBJNBEC–Candelabra or Japanese Primrose, Primula
Primrose (Primula vulgaris), close-up of the spring wildflower flowering during March, England, UK. A thrum-eyed flower type. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-the-spring-wildflower-flowering-during-march-england-uk-a-thrum-eyed-flower-type-image465729363.htmlRM2J1KPFF–Primrose (Primula vulgaris), close-up of the spring wildflower flowering during March, England, UK. A thrum-eyed flower type.
The flowers of the Primrose are an early sign that the season is changing and the ground hugging flowers bring a welcome splash of colour in the grass Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-flowers-of-the-primrose-are-an-early-sign-that-the-season-is-changing-and-the-ground-hugging-flowers-bring-a-welcome-splash-of-colour-in-the-grass-image416444449.htmlRM2F5EK41–The flowers of the Primrose are an early sign that the season is changing and the ground hugging flowers bring a welcome splash of colour in the grass
Primrose (Primula vulgaris), a spring wildflower, UK. Close-up of the two flower types, pin-eyed (left) and thrum-eyed (right) flowers. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-a-spring-wildflower-uk-close-up-of-the-two-flower-types-pin-eyed-left-and-thrum-eyed-right-flowers-image465729506.htmlRM2J1KPMJ–Primrose (Primula vulgaris), a spring wildflower, UK. Close-up of the two flower types, pin-eyed (left) and thrum-eyed (right) flowers.
Primrose 'Primula vulgaris'. Close up of centre of flower showing thrum eyed centre (anthers) which enables cross pollination in Spring. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-centre-of-flower-showing-thrum-eyed-centre-anthers-which-enables-cross-pollination-in-spring-image351448569.htmlRF2BBNT6H–Primrose 'Primula vulgaris'. Close up of centre of flower showing thrum eyed centre (anthers) which enables cross pollination in Spring.
Clumps of Primrose flower at the beginning of spring in grasslands and in clearings in woodland. They are a bright splash of colour Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/clumps-of-primrose-flower-at-the-beginning-of-spring-in-grasslands-and-in-clearings-in-woodland-they-are-a-bright-splash-of-colour-image416444453.htmlRM2F5EK45–Clumps of Primrose flower at the beginning of spring in grasslands and in clearings in woodland. They are a bright splash of colour
Primrose 'Primula vulgaris'. Close up of centre of flower showing thrum eyed centre (anthers) which enables cross pollination in Spring, after a showe Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-centre-of-flower-showing-thrum-eyed-centre-anthers-which-enables-cross-pollination-in-spring-after-a-showe-image351448659.htmlRF2BBNT9R–Primrose 'Primula vulgaris'. Close up of centre of flower showing thrum eyed centre (anthers) which enables cross pollination in Spring, after a showe
![. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin Stock Photo](https://c8.alamy.com/comp/PFGBA6/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwin-PFGBA6.jpg ". Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin Stock Photo")
. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwin-image216104398.htmlRMPFGBA6–. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin
Primrose Primula vulgaris flowering in a hedgerow Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-primrose-primula-vulgaris-flowering-in-a-hedgerow-11449715.htmlRFA63K5T–Primrose Primula vulgaris flowering in a hedgerow
WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/white-and-yellow-primroses-primula-vulgaris-growing-wild-uk-image8256588.htmlRFAHEDTD–WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK
The Primrose is a wild member of the Primula family and one the first spring flowers to appear, especially on south facing grassy slopes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-primrose-is-a-wild-member-of-the-primula-family-and-one-the-first-spring-flowers-to-appear-especially-on-south-facing-grassy-slopes-image463716249.htmlRM2HXC2PH–The Primrose is a wild member of the Primula family and one the first spring flowers to appear, especially on south facing grassy slopes
Primroses (primula vulgaris), close up focusing on a single thrum-eyed flower out of a small cluster with limited depth of field. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primroses-primula-vulgaris-close-up-focusing-on-a-single-thrum-eyed-flower-out-of-a-small-cluster-with-limited-depth-of-field-image472206436.htmlRF2JC6T3G–Primroses (primula vulgaris), close up focusing on a single thrum-eyed flower out of a small cluster with limited depth of field.
The Primrose is an early flowering perennial of the Primula family. They stand out on the floor of the UK's woodlands in late winter and early spring. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-primrose-is-an-early-flowering-perennial-of-the-primula-family-they-stand-out-on-the-floor-of-the-uks-woodlands-in-late-winter-and-early-spring-image406830589.htmlRM2EHTMFW–The Primrose is an early flowering perennial of the Primula family. They stand out on the floor of the UK's woodlands in late winter and early spring.
Primula vulgaris ‘Danova Lemon Yellow’ yellow primroses, March, England, UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primula-vulgaris-danova-lemon-yellow-yellow-primroses-march-england-uk-image414211927.htmlRF2F1TYF3–Primula vulgaris ‘Danova Lemon Yellow’ yellow primroses, March, England, UK
Primrose (primula vulgaris), close up of a single thrum-eyed flower with limited depth of field. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-close-up-of-a-single-thrum-eyed-flower-with-limited-depth-of-field-image471667373.htmlRF2JBA8F9–Primrose (primula vulgaris), close up of a single thrum-eyed flower with limited depth of field.
Primula vulgaris ‘Rambo Appleblossom’ lilac pink primroses with deep red halo, March, England, UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primula-vulgaris-rambo-appleblossom-lilac-pink-primroses-with-deep-red-halo-march-england-uk-image413575843.htmlRF2F0T05R–Primula vulgaris ‘Rambo Appleblossom’ lilac pink primroses with deep red halo, March, England, UK
![. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi Stock Photo](https://c8.alamy.com/comp/RD3YNK/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-ox-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-floaver-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwi-RD3YNK.jpg ". Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi Stock Photo")
. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-ox-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-floaver-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwi-image231812943.htmlRMRD3YNK–. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi
In early Spring the Primrose is one of the first wild flowers to come into bloom. They are the ancestors of the Primula, much favoured by gardeners Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/in-early-spring-the-primrose-is-one-of-the-first-wild-flowers-to-come-into-bloom-they-are-the-ancestors-of-the-primula-much-favoured-by-gardeners-image426076557.htmlRM2FN5CYW–In early Spring the Primrose is one of the first wild flowers to come into bloom. They are the ancestors of the Primula, much favoured by gardeners
Candelabra or Japanese Primrose Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-candelabra-or-japanese-primrose-28743728.htmlRMBJNAWM–Candelabra or Japanese Primrose
Primrose (Primula vulgaris), a spring wildflower, UK. Close-up of the two flower types, pin-eyed (top) and thrum-eyed (bottom) flowers. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/primrose-primula-vulgaris-a-spring-wildflower-uk-close-up-of-the-two-flower-types-pin-eyed-top-and-thrum-eyed-bottom-flowers-image465729515.htmlRM2J1KPMY–Primrose (Primula vulgaris), a spring wildflower, UK. Close-up of the two flower types, pin-eyed (top) and thrum-eyed (bottom) flowers.
![. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi Stock Photo](https://c8.alamy.com/comp/PFGB9E/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quot-thrum-eyedquot-but-they-are-called-by-darwi-PFGB9E.jpg ". Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi Stock Photo")
. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quot-thrum-eyedquot-but-they-are-called-by-darwi-image216104378.htmlRMPFGB9E–. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi
WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/white-and-yellow-primroses-primula-vulgaris-growing-wild-uk-image8256591.htmlRFAHEDW0–WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK
![. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi Stock Photo](https://c8.alamy.com/comp/RD3YPN/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quot-thrum-eyedquot-but-they-are-called-by-darwi-RD3YPN.jpg ". Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi Stock Photo")
. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quot-thrum-eyedquot-but-they-are-called-by-darwi-image231812973.htmlRMRD3YPN–. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the " thrum-eyed," but they are called by Darwi
The Wood Anemone and Primrose are spring flowers that carpet the floor of deciduous woodland in suitable habitats. They flower before the canopy opens Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-wood-anemone-and-primrose-are-spring-flowers-that-carpet-the-floor-of-deciduous-woodland-in-suitable-habitats-they-flower-before-the-canopy-opens-image426062507.htmlRM2FN4R23–The Wood Anemone and Primrose are spring flowers that carpet the floor of deciduous woodland in suitable habitats. They flower before the canopy opens
Early Spring is the time for the woodlands and grasslands to give a show of early flowering plants like the Primrose, an ancestor to the Primula Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/early-spring-is-the-time-for-the-woodlands-and-grasslands-to-give-a-show-of-early-flowering-plants-like-the-primrose-an-ancestor-to-the-primula-image417313623.htmlRM2F6X7NY–Early Spring is the time for the woodlands and grasslands to give a show of early flowering plants like the Primrose, an ancestor to the Primula
![. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi Stock Photo](https://c8.alamy.com/comp/PFGB8E/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-ox-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-floaver-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwi-PFGB8E.jpg ". Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi Stock Photo")
. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-ox-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-floaver-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwi-image216104350.htmlRMPFGB8E–. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. vii OX THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the floAver, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwi
A STUDIO SHOT OF A SINGLE PALE YELLOW PRIMROSE FLOWER PRIMULA VULGARIS RESTING ON A LEAF Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-studio-shot-of-a-single-pale-yellow-primrose-flower-primula-vulgaris-image8256597.htmlRFAHEDW6–A STUDIO SHOT OF A SINGLE PALE YELLOW PRIMROSE FLOWER PRIMULA VULGARIS RESTING ON A LEAF
. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. IV ON PLANT LIFE 131 same stock. They have been long known to children and gardeners, who call them thrum- eyed and pin-eyed. Mr. Darwin was the first to explain the significance of this curious difference. It cost him several years of patient labour, but when once pointed out it is suflficiently obvious. An insect thrusting its. OoOO ° 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-beauties-of-nature-and-the-wonders-of-the-world-we-live-in-natural-history-physical-geography-astronomy-iv-on-plant-life-131-same-stock-they-have-been-long-known-to-children-and-gardeners-who-call-them-thrum-eyed-and-pin-eyed-mr-darwin-was-the-first-to-explain-the-significance-of-this-curious-difference-it-cost-him-several-years-of-patient-labour-but-when-once-pointed-out-it-is-suflficiently-obvious-an-insect-thrusting-its-oooo-0-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appe-image232124911.htmlRMRDJ5KB–. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. IV ON PLANT LIFE 131 same stock. They have been long known to children and gardeners, who call them thrum- eyed and pin-eyed. Mr. Darwin was the first to explain the significance of this curious difference. It cost him several years of patient labour, but when once pointed out it is suflficiently obvious. An insect thrusting its. OoOO ° 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe
![. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st Stock Photo](https://c8.alamy.com/comp/PFGB95/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-ii-y-j-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-hare-long-been-known-to-florists-as-the-quot-pin-eyed-quot-and-the-quot-thrum-eyedquot-bnt-they-are-called-by-darwin-the-long-st-PFGB95.jpg ". Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st Stock Photo")
. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-ii-y-j-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-hare-long-been-known-to-florists-as-the-quot-pin-eyed-quot-and-the-quot-thrum-eyedquot-bnt-they-are-called-by-darwin-the-long-st-image216104369.htmlRMPFGB95–. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st
WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/white-and-yellow-primroses-primula-vulgaris-growing-wild-uk-image8256595.htmlRFAHEDW4–WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK
![. Botany of the living plant. Botany. APPENDIX A 527 year. The flowers are borne singly in the axils of bracts, which succeed the foHage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It will be seen, however, that in number and arrangement of the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consist Stock Photo](https://c8.alamy.com/comp/RH80E9/botany-of-the-living-plant-botany-appendix-a-527-year-the-flowers-are-borne-singly-in-the-axils-of-bracts-which-succeed-the-fohage-leaves-there-are-two-types-of-flower-which-are-borne-on-distinct-plants-quot-pin-eyedquot-with-the-stigma-occupying-the-centre-of-the-flower-and-quot-thrum-eyedquot-where-its-place-is-taken-by-five-anthers-it-will-be-seen-however-that-in-number-and-arrangement-of-the-parts-both-are-alike-the-difference-is-one-of-proportion-of-development-of-the-parts-fig-434-for-convenience-a-quot-pin-eyed-quot-flower-may-be-taken-first-it-consist-RH80E9.jpg ". Botany of the living plant. Botany. APPENDIX A 527 year. The flowers are borne singly in the axils of bracts, which succeed the foHage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It will be seen, however, that in number and arrangement of the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consist Stock Photo")
. Botany of the living plant. Botany. APPENDIX A 527 year. The flowers are borne singly in the axils of bracts, which succeed the foHage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It will be seen, however, that in number and arrangement of the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consist Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-appendix-a-527-year-the-flowers-are-borne-singly-in-the-axils-of-bracts-which-succeed-the-fohage-leaves-there-are-two-types-of-flower-which-are-borne-on-distinct-plants-quot-pin-eyedquot-with-the-stigma-occupying-the-centre-of-the-flower-and-quot-thrum-eyedquot-where-its-place-is-taken-by-five-anthers-it-will-be-seen-however-that-in-number-and-arrangement-of-the-parts-both-are-alike-the-difference-is-one-of-proportion-of-development-of-the-parts-fig-434-for-convenience-a-quot-pin-eyed-quot-flower-may-be-taken-first-it-consist-image234359953.htmlRMRH80E9–. Botany of the living plant. Botany. APPENDIX A 527 year. The flowers are borne singly in the axils of bracts, which succeed the foHage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It will be seen, however, that in number and arrangement of the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consist
. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. ON PLANT LIFE 131 same stock. They have been long known to children and gardeners, who call them thrum- feyed and pin-eyed. Mr. Darwin was the first to explain the significance of this curious difference. It cost him several years of patient labour, but when once pointed out it is sufiiciently obvious. An insect thrusting its. Fig. 12. OoOO 0 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-beauties-of-nature-and-the-wonders-of-the-world-we-live-in-natural-history-physical-geography-astronomy-on-plant-life-131-same-stock-they-have-been-long-known-to-children-and-gardeners-who-call-them-thrum-feyed-and-pin-eyed-mr-darwin-was-the-first-to-explain-the-significance-of-this-curious-difference-it-cost-him-several-years-of-patient-labour-but-when-once-pointed-out-it-is-sufiiciently-obvious-an-insect-thrusting-its-fig-12-oooo-0-0-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-an-image216443934.htmlRMPG3TCE–. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. ON PLANT LIFE 131 same stock. They have been long known to children and gardeners, who call them thrum- feyed and pin-eyed. Mr. Darwin was the first to explain the significance of this curious difference. It cost him several years of patient labour, but when once pointed out it is sufiiciently obvious. An insect thrusting its. Fig. 12. OoOO 0 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an
WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/white-and-yellow-primroses-primula-vulgaris-growing-wild-uk-image8256593.htmlRFAHEDW2–WHITE AND YELLOW PRIMROSES PRIMULA VULGARIS GROWING WILD UK
A CLUMP OF YELLOW WILD PRIMROSE FLOWERS PRIMULA VULGARIS UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-a-clump-of-yellow-wild-primrose-flowers-primula-vulgaris-uk-12641806.htmlRFAAJB2R–A CLUMP OF YELLOW WILD PRIMROSE FLOWERS PRIMULA VULGARIS UK
A STUDIO SHOT OF A THREE PALE YELLOW PRIMROSE FLOWERS PRIMULA VULGARIS RESTING SOME LEAVES Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-studio-shot-of-a-three-pale-yellow-primrose-flowers-primula-vulgaris-image8256600.htmlRFAHEDW9–A STUDIO SHOT OF A THREE PALE YELLOW PRIMROSE FLOWERS PRIMULA VULGARIS RESTING SOME LEAVES
![. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st Stock Photo](https://c8.alamy.com/comp/RD3YP2/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-ii-y-j-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-hare-long-been-known-to-florists-as-the-quot-pin-eyed-quot-and-the-quot-thrum-eyedquot-bnt-they-are-called-by-darwin-the-long-st-RD3YP2.jpg ". Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st Stock Photo")
. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-ii-y-j-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-hare-long-been-known-to-florists-as-the-quot-pin-eyed-quot-and-the-quot-thrum-eyedquot-bnt-they-are-called-by-darwin-the-long-st-image231812954.htmlRMRD3YP2–. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ^.i:i: y ;j ;:.; —— :;- style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms hare long been known to florists as the " pin-eyed " and the " thrum-eyed," bnt they are called by Darwin the long-st
A STUDIO SHOT OF A THREE PALE YELLOW PRIMROSE FLOWERS PRIMULA VULGARIS RESTING SOME LEAVES Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-studio-shot-of-a-three-pale-yellow-primrose-flowers-primula-vulgaris-image8256602.htmlRFAHEDWB–A STUDIO SHOT OF A THREE PALE YELLOW PRIMROSE FLOWERS PRIMULA VULGARIS RESTING SOME LEAVES
![. The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VARIOUS MARRIAGK CUSTOMS. 107 his way at once to the stamens and stigma or sensitive surface. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also coloured red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18.—PIN-ETED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. PIG. 19.—THRUM-EYED PRIMROSE, GUT OPEN SO AS TO SHOW STA- MENS AND STIGMA. petals. For instance, the harebell has the ed Stock Photo](https://c8.alamy.com/comp/RJ00FX/the-story-of-the-plants-microform-plants-botany-plantes-botanique-various-marriagk-customs-107-his-way-at-once-to-the-stamens-and-stigma-or-sensitive-surface-the-consequence-is-that-the-majority-of-the-higher-plants-have-now-corollas-in-a-single-piece-and-most-of-these-are-also-coloured-red-blue-or-purple-still-even-now-many-of-them-retain-marks-of-the-original-five-fig-18pin-eted-primrose-cut-open-so-as-to-show-the-arrangement-of-the-stamens-and-stigma-pig-19thrum-eyed-primrose-gut-open-so-as-to-show-sta-mens-and-stigma-petals-for-instance-the-harebell-has-the-ed-RJ00FX.jpg ". The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VARIOUS MARRIAGK CUSTOMS. 107 his way at once to the stamens and stigma or sensitive surface. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also coloured red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18.—PIN-ETED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. PIG. 19.—THRUM-EYED PRIMROSE, GUT OPEN SO AS TO SHOW STA- MENS AND STIGMA. petals. For instance, the harebell has the ed Stock Photo")
. The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VARIOUS MARRIAGK CUSTOMS. 107 his way at once to the stamens and stigma or sensitive surface. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also coloured red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18.—PIN-ETED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. PIG. 19.—THRUM-EYED PRIMROSE, GUT OPEN SO AS TO SHOW STA- MENS AND STIGMA. petals. For instance, the harebell has the ed Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-story-of-the-plants-microform-plants-botany-plantes-botanique-various-marriagk-customs-107-his-way-at-once-to-the-stamens-and-stigma-or-sensitive-surface-the-consequence-is-that-the-majority-of-the-higher-plants-have-now-corollas-in-a-single-piece-and-most-of-these-are-also-coloured-red-blue-or-purple-still-even-now-many-of-them-retain-marks-of-the-original-five-fig-18pin-eted-primrose-cut-open-so-as-to-show-the-arrangement-of-the-stamens-and-stigma-pig-19thrum-eyed-primrose-gut-open-so-as-to-show-sta-mens-and-stigma-petals-for-instance-the-harebell-has-the-ed-image234799038.htmlRMRJ00FX–. The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VARIOUS MARRIAGK CUSTOMS. 107 his way at once to the stamens and stigma or sensitive surface. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also coloured red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18.—PIN-ETED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. PIG. 19.—THRUM-EYED PRIMROSE, GUT OPEN SO AS TO SHOW STA- MENS AND STIGMA. petals. For instance, the harebell has the ed
. Mendelism. Mendel's law. INTERACTION OF FACTORS 55 it contains the hoary factor in addition to the two colour factors. It reqxures the presence of all these three factors to produce the hoary character, though how this comes about we have not at present the least idea. A somewhat different and less usual 'form of inter- action between factors may be illustrated by a case in primulas recently worked out by Bateson and Gregory, Like the common primrose, the primula exhibits both pin-eyed and thrum-eyed varieties. In the former the style is long, and the centre of the eye is formed by the end o Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/mendelism-mendels-law-interaction-of-factors-55-it-contains-the-hoary-factor-in-addition-to-the-two-colour-factors-it-reqxures-the-presence-of-all-these-three-factors-to-produce-the-hoary-character-though-how-this-comes-about-we-have-not-at-present-the-least-idea-a-somewhat-different-and-less-usual-form-of-inter-action-between-factors-may-be-illustrated-by-a-case-in-primulas-recently-worked-out-by-bateson-and-gregory-like-the-common-primrose-the-primula-exhibits-both-pin-eyed-and-thrum-eyed-varieties-in-the-former-the-style-is-long-and-the-centre-of-the-eye-is-formed-by-the-end-o-image232210604.htmlRMRDP2YT–. Mendelism. Mendel's law. INTERACTION OF FACTORS 55 it contains the hoary factor in addition to the two colour factors. It reqxures the presence of all these three factors to produce the hoary character, though how this comes about we have not at present the least idea. A somewhat different and less usual 'form of inter- action between factors may be illustrated by a case in primulas recently worked out by Bateson and Gregory, Like the common primrose, the primula exhibits both pin-eyed and thrum-eyed varieties. In the former the style is long, and the centre of the eye is formed by the end o
![. Botany of the living plant. Botany. APPENDIX A 527 yeai-. The flowers are borne singly in the axils of bracts, which succeed the foliage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It wall be seen, however, that in number and arrangement of'the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consi Stock Photo](https://c8.alamy.com/comp/RDY5DG/botany-of-the-living-plant-botany-appendix-a-527-yeai-the-flowers-are-borne-singly-in-the-axils-of-bracts-which-succeed-the-foliage-leaves-there-are-two-types-of-flower-which-are-borne-on-distinct-plants-quot-pin-eyedquot-with-the-stigma-occupying-the-centre-of-the-flower-and-quot-thrum-eyedquot-where-its-place-is-taken-by-five-anthers-it-wall-be-seen-however-that-in-number-and-arrangement-ofthe-parts-both-are-alike-the-difference-is-one-of-proportion-of-development-of-the-parts-fig-434-for-convenience-a-quot-pin-eyed-quot-flower-may-be-taken-first-it-consi-RDY5DG.jpg ". Botany of the living plant. Botany. APPENDIX A 527 yeai-. The flowers are borne singly in the axils of bracts, which succeed the foliage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It wall be seen, however, that in number and arrangement of'the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consi Stock Photo")
. Botany of the living plant. Botany. APPENDIX A 527 yeai-. The flowers are borne singly in the axils of bracts, which succeed the foliage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It wall be seen, however, that in number and arrangement of'the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-appendix-a-527-yeai-the-flowers-are-borne-singly-in-the-axils-of-bracts-which-succeed-the-foliage-leaves-there-are-two-types-of-flower-which-are-borne-on-distinct-plants-quot-pin-eyedquot-with-the-stigma-occupying-the-centre-of-the-flower-and-quot-thrum-eyedquot-where-its-place-is-taken-by-five-anthers-it-wall-be-seen-however-that-in-number-and-arrangement-ofthe-parts-both-are-alike-the-difference-is-one-of-proportion-of-development-of-the-parts-fig-434-for-convenience-a-quot-pin-eyed-quot-flower-may-be-taken-first-it-consi-image232322316.htmlRMRDY5DG–. Botany of the living plant. Botany. APPENDIX A 527 yeai-. The flowers are borne singly in the axils of bracts, which succeed the foliage leaves. There are two types of flower which are borne on distinct plants : " pin-eyed," with the stigma occupying the centre of the flower, and " thrum-eyed," where its place is taken by five anthers. It wall be seen, however, that in number and arrangement of'the parts both are alike : the difference is one of proportion of development of the parts (Fig. 434). For convenience a " pin-eyed " flower may be taken first ; it consi
![. Botany of the living plant. Botany; Plants. APPENDIX A 641 Pollination. Compare first the " thrum-eyed " type of flower. The parts are numerically the same as in the " pin-eyed " ; but the style carries the stigma only half-way up the corolla-tube, corresponding in level to the stamens of the " pin-eyed." The stamens are inserted at the throat of the corolla, corresponding in level to the stigma of the " pin-eyed." The effect of this " dimorphism " is to increase the probability of intercrossing as a consequence. Fig. 492. Primula vulgaris. I Stock Photo](https://c8.alamy.com/comp/RH7Y6G/botany-of-the-living-plant-botany-plants-appendix-a-641-pollination-compare-first-the-quot-thrum-eyed-quot-type-of-flower-the-parts-are-numerically-the-same-as-in-the-quot-pin-eyed-quot-but-the-style-carries-the-stigma-only-half-way-up-the-corolla-tube-corresponding-in-level-to-the-stamens-of-the-quot-pin-eyedquot-the-stamens-are-inserted-at-the-throat-of-the-corolla-corresponding-in-level-to-the-stigma-of-the-quot-pin-eyedquot-the-effect-of-this-quot-dimorphism-quot-is-to-increase-the-probability-of-intercrossing-as-a-consequence-fig-492-primula-vulgaris-i-RH7Y6G.jpg ". Botany of the living plant. Botany; Plants. APPENDIX A 641 Pollination. Compare first the " thrum-eyed " type of flower. The parts are numerically the same as in the " pin-eyed " ; but the style carries the stigma only half-way up the corolla-tube, corresponding in level to the stamens of the " pin-eyed." The stamens are inserted at the throat of the corolla, corresponding in level to the stigma of the " pin-eyed." The effect of this " dimorphism " is to increase the probability of intercrossing as a consequence. Fig. 492. Primula vulgaris. I Stock Photo")
. Botany of the living plant. Botany; Plants. APPENDIX A 641 Pollination. Compare first the " thrum-eyed " type of flower. The parts are numerically the same as in the " pin-eyed " ; but the style carries the stigma only half-way up the corolla-tube, corresponding in level to the stamens of the " pin-eyed." The stamens are inserted at the throat of the corolla, corresponding in level to the stigma of the " pin-eyed." The effect of this " dimorphism " is to increase the probability of intercrossing as a consequence. Fig. 492. Primula vulgaris. I Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-appendix-a-641-pollination-compare-first-the-quot-thrum-eyed-quot-type-of-flower-the-parts-are-numerically-the-same-as-in-the-quot-pin-eyed-quot-but-the-style-carries-the-stigma-only-half-way-up-the-corolla-tube-corresponding-in-level-to-the-stamens-of-the-quot-pin-eyedquot-the-stamens-are-inserted-at-the-throat-of-the-corolla-corresponding-in-level-to-the-stigma-of-the-quot-pin-eyedquot-the-effect-of-this-quot-dimorphism-quot-is-to-increase-the-probability-of-intercrossing-as-a-consequence-fig-492-primula-vulgaris-i-image234358952.htmlRMRH7Y6G–. Botany of the living plant. Botany; Plants. APPENDIX A 641 Pollination. Compare first the " thrum-eyed " type of flower. The parts are numerically the same as in the " pin-eyed " ; but the style carries the stigma only half-way up the corolla-tube, corresponding in level to the stamens of the " pin-eyed." The stamens are inserted at the throat of the corolla, corresponding in level to the stigma of the " pin-eyed." The effect of this " dimorphism " is to increase the probability of intercrossing as a consequence. Fig. 492. Primula vulgaris. I
![. The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VABIOUS MARRIAGE CUSTOMS. 107 hip way at once to the stamens and stigma or sensitive sm-face. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also colom-ed red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18. —PIN-EYED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. FIG. 19.—THRUM-EYED PRIMROSE, CUT OPEN SO AS TO 3H0W STA- MENS AND STIGMA. petals. For instance, the harebell has the e Stock Photo](https://c8.alamy.com/comp/RJ5GFN/the-story-of-the-plants-microform-plants-botany-plantes-botanique-vabious-marriage-customs-107-hip-way-at-once-to-the-stamens-and-stigma-or-sensitive-sm-face-the-consequence-is-that-the-majority-of-the-higher-plants-have-now-corollas-in-a-single-piece-and-most-of-these-are-also-colom-ed-red-blue-or-purple-still-even-now-many-of-them-retain-marks-of-the-original-five-fig-18-pin-eyed-primrose-cut-open-so-as-to-show-the-arrangement-of-the-stamens-and-stigma-fig-19thrum-eyed-primrose-cut-open-so-as-to-3h0w-sta-mens-and-stigma-petals-for-instance-the-harebell-has-the-e-RJ5GFN.jpg ". The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VABIOUS MARRIAGE CUSTOMS. 107 hip way at once to the stamens and stigma or sensitive sm-face. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also colom-ed red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18. —PIN-EYED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. FIG. 19.—THRUM-EYED PRIMROSE, CUT OPEN SO AS TO 3H0W STA- MENS AND STIGMA. petals. For instance, the harebell has the e Stock Photo")
. The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VABIOUS MARRIAGE CUSTOMS. 107 hip way at once to the stamens and stigma or sensitive sm-face. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also colom-ed red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18. —PIN-EYED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. FIG. 19.—THRUM-EYED PRIMROSE, CUT OPEN SO AS TO 3H0W STA- MENS AND STIGMA. petals. For instance, the harebell has the e Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-story-of-the-plants-microform-plants-botany-plantes-botanique-vabious-marriage-customs-107-hip-way-at-once-to-the-stamens-and-stigma-or-sensitive-sm-face-the-consequence-is-that-the-majority-of-the-higher-plants-have-now-corollas-in-a-single-piece-and-most-of-these-are-also-colom-ed-red-blue-or-purple-still-even-now-many-of-them-retain-marks-of-the-original-five-fig-18-pin-eyed-primrose-cut-open-so-as-to-show-the-arrangement-of-the-stamens-and-stigma-fig-19thrum-eyed-primrose-cut-open-so-as-to-3h0w-sta-mens-and-stigma-petals-for-instance-the-harebell-has-the-e-image234921337.htmlRMRJ5GFN–. The story of the plants [microform]. Plants; Botany; Plantes; Botanique. VABIOUS MARRIAGE CUSTOMS. 107 hip way at once to the stamens and stigma or sensitive sm-face. The consequence is that the majority of the higher plants have now corollas in a single piece; and most of these are also colom-ed red, blue, or purple. Still, even now many of them retain marks of the original five. FIG. 18. —PIN-EYED PRIMROSE, CUT OPEN SO AS TO SHOW THE ARRANGEMENT OF THE STAMENS AND STIGMA. FIG. 19.—THRUM-EYED PRIMROSE, CUT OPEN SO AS TO 3H0W STA- MENS AND STIGMA. petals. For instance, the harebell has the e
![. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin Stock Photo](https://c8.alamy.com/comp/RD0N0G/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwin-RD0N0G.jpg ". Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin Stock Photo")
. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/darwinism-an-exposition-of-the-theory-of-natural-selection-with-some-of-its-applications-natural-selection-evolution-vii-on-the-infertility-of-crosses-157-style-is-long-the-globular-stigma-appearing-just-in-the-centre-of-the-open-flower-in-the-other-kind-the-stamens-are-long-appearing-in-the-centre-or-throat-of-the-flower-while-the-style-is-short-the-stigma-being-situated-halfway-down-the-tube-at-the-same-level-as-the-stamens-in-the-other-form-these-two-forms-have-long-been-known-to-florists-as-the-quotpin-eyedquot-and-the-quotthrum-eyedquot-but-they-are-called-by-darwin-image231741792.htmlRMRD0N0G–. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. VII ON THE INFERTILITY OF CROSSES 157 style is long, the globular stigma appearing just in the centre of the open flower. In the other kind the stamens are long, appearing in the centre or throat of the flower, while the style is short, the stigma being situated halfway down the tube at the same level as the stamens in the other form. These two forms have long been known to florists as the "pin-eyed" and the "thrum-eyed," but they are called by Darwin
. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. ON PLANT LIFE 131 same stock. They have been long known to children and gardeners, who call them thrum- feyed and pin-eyed. Mr. Darwin was the first to explain the significance of this curious difference. It cost him several years of patient labour, but when once pointed out it is sufiiciently obvious. An insect thrusting its. Fig. 12. OoOO 0 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-beauties-of-nature-and-the-wonders-of-the-world-we-live-in-natural-history-physical-geography-astronomy-on-plant-life-131-same-stock-they-have-been-long-known-to-children-and-gardeners-who-call-them-thrum-feyed-and-pin-eyed-mr-darwin-was-the-first-to-explain-the-significance-of-this-curious-difference-it-cost-him-several-years-of-patient-labour-but-when-once-pointed-out-it-is-sufiiciently-obvious-an-insect-thrusting-its-fig-12-oooo-0-0-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-an-image232134340.htmlRMRDJHM4–. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. ON PLANT LIFE 131 same stock. They have been long known to children and gardeners, who call them thrum- feyed and pin-eyed. Mr. Darwin was the first to explain the significance of this curious difference. It cost him several years of patient labour, but when once pointed out it is sufiiciently obvious. An insect thrusting its. Fig. 12. OoOO 0 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an
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