74 
MILDEWS, RUSTS AND SMUTS 
often in a ring round a larger circular one, small, soon 
naked, cinnamon, powdery ; spores subglobose, sparingly 
echinulate, brown, i8—25 p, epispore thick, 4—8 germ-pores. 
Teleutospores. Sori similar in form to those of the 
uredo stage, but darker in colour ; spores subglobose or 
ovate, tip with a very minute papilla, warted, brown, 16— 
22 X 15—20 p, pedicel short, colourless, deciduous. 
Syn. Uredo anthyllidis, Grev. 
On leaves of AnthylUs vulneraria. Europe generally. 
Uromyces ervi, West., Plowr., Ured. p. 140. 
\ Aecidia. Solitary or in small groups on the leaves, 
petioles and stem, edge slightly recurved, somewhat torn ; 
spores angularly-globose, yellowish, minutely warted, 
16—25 X 14—18 p. 
Uredospores. Rarely produced, on leaves, petioles and 
stem, scattered, minute, oblong, surrounded by the rup¬ 
tured epidermis, cinnamon ; spores ovate or elliptical, 
sparingly echinulate, brownish, 20—30 x 18—22 p. 
Teleutospores. Sori on both sides of the leaf, or often 
on the petioles or stem, scattered, oblong, minute, dusky 
brown ; spores subglobose, ovate or elliptical, tip generally 
rounded, much thickened, base rounded or narrowed, 
smooth, brown, 20—28 X 14—20 p, pedicel persistent, 
tinged brown, longer than the spore. 
On Vicia hirsuta [Ervum hirsutum). Plowright points 
out that this species, structurally, closely resembles U. 
orohi, U. fabae, and U. pisi, but will not grow on the hosts 
of these species, but only on Vicia hirsuta. 
Uromyces fabae, De Bary., Plowr., Ured. p. 119. 
Pycnidia. Intermixed with the aecidia. 
Aecidia. Usually crowded on whitish or yellowish spots, 
edge whitish, recurved, torn ; spores angularly-globose, 
orange-yellow, minutely warted, 14—25 p. 
Uredospores. Sori on both surfaces of the leaf, scattered 
or arranged in circles, minute, powdery ; spores subglobose, 
elliptical or ovate, sparsely echinulate, pale brown, 20—30 
X 18—26 p, epispore 1.5—2.5 p thick. 
Teleutospores. Similar in form and arrangement to 
the uredo sori, dusky brown ; spores subglobose, ovate or 
elliptical, tip rounded or truncate, much thickened, smooth, 
brown, 25—40 X 18—27 p, pedicel persistent, tinged 
yellow or brown, thick, longer than the spore. 
Syn. Uredo fabae, Pers. 
Uromyces appendiculahis, Unger. 
