140 British Uvredinee and Ustilaginez. 
Uromyces ervi. (Wallr.) 
Eudiospores—Scattered over both surfaces of the leaves and on the 
stems, Pseudoperidia cylindrical or abbreviated, with torn 
white edges. Spores subglobose, orange, often polygonal, 
10-124 in diameter. 
Teleutospores--Sori oval, elliptical or linear, shining black, per- 
sistent, erumpent, mostly cauline, Spores ovate or subglobose, 
smooth, brown, apex thickened and darker, rounded or flat- 
tened, often with a blunt conical incrassation, ro-12 high 
30-35 X 15-254. Pedicels brown, long, firmly attached, 
stout. 
Synonym. 
Acidium ervi, Wallr., “ Flor. Crypt. Germ.,” vol. ii. p. 247. 
On Vicia hirsuta (Ervum hirsutum, L.). 
“Ecidiospores, May to June and August to October ; teleuto- 
spores, from July, lasting on the dead stems through the winter. 
BIoLOGY.—Intermixed with the teleutospores occasionally are. 
found a few ovate, pale brown uredospores, 20 X 104, This species 
morphologically closely resembles U. orobz, faba, and pisz; but I 
found, in 1886, that the germinating teleutospores, when placed on 
young plants of Prsum sativum, Faba vulgaris, and a vetch seedling, 
produced no effect (Exp. 623, 645, 646, 647). In 1888, no result was 
obtained on Victa cracca, sativa, and Lathyrus Dratenes; but only 
upon Ervum hirsutum (Exp. 813 to 827). 
V. MICRUROMYCES. Schrot. 
Having only teleutospores, which germinate after a period of rest. Rarely 
there are found hidden between the teleutospores a few solitary uredospores. 
Uromyces ficariz. (Schum.) 
Teleutospores— Sori numerous, amphigenous, in more or less 
rounded clusters. Spores mostly ovoid, obovate, or pyri- 
form, smooth, brown; the apex of each has usually a wart- 
like, pale brown papilla, 25-44 x 16-26. Pedicels short, 
colourless, 
