. Fossil plants : for students of botany and geology . Paleobotany. 392 BENNBTTITALES [CH. certain recent Flowering plants; it is one of the distinguishing features between Gymdeoidea and stems bearing longer fertile shoots with flowers of the Williamsonia type.. Fio. 521. Cycadeoidea (Bennettites) Gibsoniana. A, C, longitudinal sections; a, absciss-layer; b, bracts; pr, ' pericarp'; s, scales, sterile and fertile. B, transverse section of female flower; i, interseminal scales; m, megasporo- phyUs. D, transverse section of seed showing the testa, t, separated by a space, sp, from the embryo. E

. Fossil plants : for students of botany and geology . Paleobotany. 392 BENNBTTITALES [CH. certain recent Flowering plants; it is one of the distinguishing features between Gymdeoidea and stems bearing longer fertile shoots with flowers of the Williamsonia type.. Fio. 521. Cycadeoidea (Bennettites) Gibsoniana. A, C, longitudinal sections; a, absciss-layer; b, bracts; pr, ' pericarp'; s, scales, sterile and fertile. B, transverse section of female flower; i, interseminal scales; m, megasporo- phyUs. D, transverse section of seed showing the testa, t, separated by a space, sp, from the embryo. E Stock Photo
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Central Historic Books / Alamy Stock Photo

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PG06RW

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7.2 MB (293.4 KB Compressed download)

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1290 x 1938 px | 21.8 x 32.8 cm | 8.6 x 12.9 inches | 150dpi

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. Fossil plants : for students of botany and geology . Paleobotany. 392 BENNBTTITALES [CH. certain recent Flowering plants; it is one of the distinguishing features between Gymdeoidea and stems bearing longer fertile shoots with flowers of the Williamsonia type.. Fio. 521. Cycadeoidea (Bennettites) Gibsoniana. A, C, longitudinal sections; a, absciss-layer; b, bracts; pr, ' pericarp'; s, scales, sterile and fertile. B, transverse section of female flower; i, interseminal scales; m, megasporo- phyUs. D, transverse section of seed showing the testa, t, separated by a space, sp, from the embryo. E, embryo; r, radicle. (A, B. h, E, after Solms-Laubach; C, section in the British Museum.) Fig. 517, C, shows a tangentially cut surface of a portion of the stem of Cycadeoidea Gibsoniana with two axillary fertile shoots; one, 1, is cut across below the receptacle and shows the axis surroimded by bracts while the other, 2, is seen at a higher level, above the receptacle, where the section has exposed the numerous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press

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