. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 8o MYCOtOGY. Fig. 26.—A foliaceous lichen, Parmelia perlata. i, Plant slightly reduced in size; a, apothecia; b, lobe of thallus; c, patches of soredia; 2, longitudinal section of apothecium and cross-section of thallus; o, ascus; b, c, hypothecium; d. upper gonidial (upper algal) layer; e, medullary layer; /, lower gonidial layer; g, lower cortical layer; I, 3, cross-section of vegetative thallus. (From Gager. After Schneider.). Please note that these images are extracted from scanned

. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 8o MYCOtOGY. Fig. 26.—A foliaceous lichen, Parmelia perlata. i, Plant slightly reduced in size; a, apothecia; b, lobe of thallus; c, patches of soredia; 2, longitudinal section of apothecium and cross-section of thallus; o, ascus; b, c, hypothecium; d. upper gonidial (upper algal) layer; e, medullary layer; /, lower gonidial layer; g, lower cortical layer; I, 3, cross-section of vegetative thallus. (From Gager. After Schneider.). Please note that these images are extracted from scanned Stock Photo

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. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 8o MYCOtOGY. Fig. 26.—A foliaceous lichen, Parmelia perlata. i, Plant slightly reduced in size; a, apothecia; b, lobe of thallus; c, patches of soredia; 2, longitudinal section of apothecium and cross-section of thallus; o, ascus; b, c, hypothecium; d. upper gonidial (upper algal) layer; e, medullary layer; /, lower gonidial layer; g, lower cortical layer; I, 3, cross-section of vegetative thallus. (From Gager. After Schneider.). 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.. Harshberger, John W. (John William), 1869-1929. Philadelphia : P. Blakiston's Son & Co

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