. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. L92 PUCCINI A This species was included by Sydow under the old P. bullata of Winter ; bul since then it has been rendered probable by the experiments of Seiiiadeiii that it is distinct from most of the forms still remaining under thai collective name (Centralbl. f. Bakter. 190 1, 2. xiii. 530). Schrbter proved that the spore-forms described above are genetically connected. The uredo- and teleutospores are generally found intermixed. 64. Puccinia Angelicae Fckl. Vmln Ai><fUcae Schum. PI. S
. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. L92 PUCCINI A This species was included by Sydow under the old P. bullata of Winter ; bul since then it has been rendered probable by the experiments of Seiiiadeiii that it is distinct from most of the forms still remaining under thai collective name (Centralbl. f. Bakter. 190 1, 2. xiii. 530). Schrbter proved that the spore-forms described above are genetically connected. The uredo- and teleutospores are generally found intermixed. 64. Puccinia Angelicae Fckl. Vmln Ai><fUcae Schum. PI. Sail. ii. 233. Triehobasis Angelicae Cooke, Micr. Fung. p. 224. Puccinia Angelicae Fckl. Symb. Myc. p. 52. Cooke, Micr. Fung. p. 208. Sydow, Monogr. i. 356. Fischer, Ured. Schweiz, 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 p) above, pale-brown, 25—40 x 22—28 p, with three equatorial Fig. 140. P. Angelicae. Two normal teleutospores, also one abnormal and a mesospore; «, a uredospore; b, 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 belowT, smooth, brown, 30—50 x 16—24 p,; 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 illustrati
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