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 p.p. 



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 germ-pores. 



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 below T , smooth, brown, 30 — 50 x 16 — 24 p,; pedicels 

 hyaline, short, deciduous ; an occasional mesospore is seen. 



