. The British rust fungi (Uredinales), their biology and classification. Uredineae. Fig. 160. P. Saxifragae. Te- leutospores, a, on 8. nmbrosa (Ireland), b, on S. steUaris (Lochnagar). Distribution : Central and Western 84. Puccinia Fazschkei Dietel. Puccinia I'a:sc/dei Diet, in Hedwig. 1891, p. 103 ; Ber. deutsch. Bot. Gesell. ix. 44, pi. 3, f. 15. Sacc. Syll. xi. 185. Sydow, Monogr. i. 503, f. 411. Fischer, Ured. Schweiz, p. 148, f. 113. Trans. Brit. Myc. Soc. iii. 123. Teleutospores. Sori epiphyllous, about ^—1 mm. wide, scattered or more often in orbicular groups 2—3 mm. diam., a
. The British rust fungi (Uredinales), their biology and classification. Uredineae. Fig. 160. P. Saxifragae. Te- leutospores, a, on 8. nmbrosa (Ireland), b, on S. steUaris (Lochnagar). Distribution : Central and Western 84. Puccinia Fazschkei Dietel. Puccinia I'a:sc/dei Diet, in Hedwig. 1891, p. 103 ; Ber. deutsch. Bot. Gesell. ix. 44, pi. 3, f. 15. Sacc. Syll. xi. 185. Sydow, Monogr. i. 503, f. 411. Fischer, Ured. Schweiz, p. 148, f. 113. Trans. Brit. Myc. Soc. iii. 123. Teleutospores. Sori epiphyllous, about ^—1 mm. wide, scattered or more often in orbicular groups 2—3 mm. diam., a few occasion- ally hypophyllous, surrounded by the swollen and torn epidermis, pulverulent, dark reddish-brown ; spores ellipsoid or .oblong, rounded at both ends, very slightly thickened above or with a minute flat papilla, gently constricted, faintly and irregularly verruculose, pale clear-brown, 25—35 x 13—18/i,; pedicels hyaline, short, deciduous; a few mesospores intermixed. On leaves of Saxifraga longifolia, Kew Gardens (G. Massee), Journ. Bot. xlvi. 152. On a hybrid between S. Cotyledon and S. aizoon, Sutton Coldfield, April and May, 1911—12. (Fig. 161.) A parasite doubtless introduced into this country with the plants. In the Sutton example, the sori form two or three perfectly round groups Fig. 161. Te- leutospores and mesospore, (Sutton Coldfield).. 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 Grove, William Bywater. Cambridge, Univ. Press
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