FLeteropuccinia. 167 
BIOLOGY.—The teleutospores are surrounded by a bed of dark- 
brown tissue, the individual fibres of which are not easily demon- 
strable. Numerous cultures in 1885-6 proved the connection be- 
tween the £ccdium ari and this Puccinia. The teleutospores of this 
species placed on Alkum ursinum produce no effect. 
Puceinia rubigo-vera. (D. C.) 
A cidiospores—Spots large, generally circular, discoloured, gene- 
rally crowded. Pseudoperidia flat, broad, with torn white 
edges. Spores subglobose, verrucose, orange-yellow, 20-254 
in diameter. 
Uredospores—Sori oblong or linear, scattered, yellow, pulverulent. 
Spores mostly round or ovate, echinulate, with three or four 
germ-pores, yellow, 20-30 X 17-24". 
Teleutospores—Sori small, oval, or linear, black, covered by epi- 
dermis, surrounded by a thick bed of brown paraphyses. 
Spores oblong or elongate, cuneiform, slightly constricted, 
‘the lower cell generally attenuated, apex thickened, truncate 
or often obliquely conical. Spores smooth, brown, variable in 
size, 40-60 X 15-204. Pedicels short. 
SYNONYMS. 
Puccinia rubigo-vera (D. C.). Winter in Rabh., “ Krypt. 
Flor.,” vol. i. p. 217. 
Uredo rubigo-vera, D. C., “Flore frang.,” vol. vi. p. 83. 
Berk., “‘ Eng. Flor.,” vol. v. p. 375. 
Trichobasis -rubigo-vera, Lév. ,Cooke, “‘ Micro. Fungi,” 4th 
edit., p. 222, t. viii. figs. 140-142. 
Trichobasis glumarum, Lév. Berk., “ Outl,” p. 332. Cooke, 
“ Hdbk.,” p. 529; “ Micro. Fungi,” 4th edit. p. 223. 
Puccinia straminis, De Bary. Cooke, “ Micro, Fungi,” 4th 
edit., p. 202. 
Atcidium asperifolit, Pers. Cooke, “‘ Hdbk.,” p. 541 ; “ Micro. 
Fungi,” 4th edit., p. 197. 
LExsiccati. 
Cooke, i. 325; ii. 48. Vize, ‘ Fungi Brit,” 7; “ Micro. Fungi 
Brit.,” 431, 440, 441. 
