. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 192 PUCCINIA This species was included by Sydow under the old P. bullata of Winter ; but since then it has been rendered probable by the experiments of Semadeni that it is distinct from most of the forms still remaining under that collective name (Centralbl. f. Bakter. 1904, 2. xiii. 530). Schroter proved that the spore-forms described above are genetically connected. The uredo- and teleutospores are generally found intermixed. 64. Puccinia Angelicae Fckl. Uredo Angelicas Sohum. PI. Sail. ii. 233. Trichohasis A
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 192 PUCCINIA This species was included by Sydow under the old P. bullata of Winter ; but since then it has been rendered probable by the experiments of Semadeni that it is distinct from most of the forms still remaining under that collective name (Centralbl. f. Bakter. 1904, 2. xiii. 530). Schroter proved that the spore-forms described above are genetically connected. The uredo- and teleutospores are generally found intermixed. 64. Puccinia Angelicae Fckl. Uredo Angelicas Sohum. PI. Sail. ii. 233. Trichohasis Angelicae Cooke, Micr. Fung. p. 224. Puccinia Angelicae Fckl. Symb. Myc. p. 52. Cooke, Micr. Fung. p. 208. Sydow, Monogr. i. 356. Fischer, Ured. Sohweiz, p. 117, f. 90. P. Pimpinellae Str. ; Plowr. Ured. p. 155 Spermogones. Few, scattered, roundish, faintly coloured. Uredospores. Primary sori chiefly along the nerves and petioles, or on the underside of the leaves in minute clusters on deep-yellow spots, at first deep-yellow, then darker, at length cinnamon; secondary, hypophyllous, occasionally epi- phyllous, on minute paler spots, scattered, minute, pulverulent, yellow-cinnamon; spores obovate to oblong, echinulate, much thickened (5—10/i) above, pale-brown, 25—40 x 22—28 /j,, with three equatorial Fig. 140. P. Angelicae. Two normal teleutospores, also one abnormal and a mesospore; a, a, uredospore; 6, the primary uredo-sori (reduced). On A. silvestris. Teleutospores. Sori amphigenous, scattered, minute, rounded, pulverulent, black-brown or black; spores oval to oblong, rounded and scarcely thickened above, hardly constricted, rounded or attenuated below, smooth, brown, 30—50x16—24/4; pedicels hyaline, short, deciduous; an occasional mesospore is 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 resembl
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