281 
DESCRIPTIONS OF NEW SPECIES OF PUCCINIA AND UROMYCES. 
By S. M. Tracy. 
Puccinia aristidvE n. sp. — (n, hi). Purely amphigenous, usually 
on the inside of the sheath. Sori oval to narrowly elliptical, sometimes 
confluent, ruptured epidermis prominent. Uredospores brownish yel¬ 
low, subglobose or oval, epispore thick, minutely tuberculate, 23-27 by 
23-32//. Teleutospores light brown, broadly oval, slightly constricted, 
epispore smooth, thickened at the apex, 25-28 by 40-45//. Pedicel 
slightly tinted, tapering, about twice the length of the spore. On 
Aristidapungens ; herb. A. Regel , Turkestan, 1887. 
Puccinia pallida n. sp. —(hi). Hypophyllous. Sori small, dark, 
scattered. Teleutospores light-colored, clavate, constricted, apex very 
much thickened and rounded, or somewhat pointed, 12-14 by 42-52//. 
Pedicel very short, almost wanting. On Osmorrhiza. Platteville, Wis., 
October, 1887. 
Puccinia redfieldiai; n. sp. — (111). Sori oval, sometimes becom¬ 
ing linear by confluence, black. Teleutospores dark brown, broadly 
elliptical or oval, constricted, epispore smooth, thickened at the apex, 
23-26 by 40-45//. Pedicel tinted, rather large, twice to three times the 
length of the spore. On Redfieldia jllexuosa. Dr. George Vasey, Kansas, 
1889. 
IJromyces ANDROPOGrONiS 7t. sp. —(n, hi). Hypophyllous. Sori oval 
or oblong, sometimes confluent. Uredospores light colored, subglobose, 
sharply echinulate, 15-17 by 16-19//. Teleutospores dark brown, broadly 
oval, apex obtuse, rounded, strongly thickened, 14-16 by 24-28//. 
Pedicel somewhat tinted, twice the length of the spore. On Andropogon 
virginicus. Starkville, Miss , October, 1891. 
Uromyces eraorostldis 7i. sp. — (ii, hi). Amphigenous. Sori 
minute, scattered, long, covered with the epidermis. Uredospores light 
yellow, subglobose, echinulate 16-18 by 17-20//. Teleutospores usually 
oval or obovate, often angular, epispore smooth, thickened at the apex, 
14- 16 by 22-28//. Pedicel slightly tinted, as long as the spore. On 
Eragrostis pectinacea. Stark ville, Miss., October, 1891. 
Uromyces panlci n. sp .— (n, hi). Hypophyllous. Sori oval or ob¬ 
long, sometimes becoming confluent. Uredospores light yellow, faintly 
echinulate, globose, 12-16//. Teleutospores dark brown, oval, smooth, 
apex thickened and sometimes beak-like, 14-16 by 26-30//. Pedicel 
tapering, tinted, somewhat longer than the spore. On Fanicum anceps. 
J. M. White, Martin, Miss., September, 1891. 
Uromyces iiordei n. sp. — (m). Hypophyllous. Sori minute, scat¬ 
tered, round or oval. Teleutospores brown, quite irregular, but usually 
oval or broadly clavate, epispore smooth, slightly thickened above, 
15- 18 by 22-26//. Pedicel very short. On Hordeum pratense , Kew 
Orleans, La., May, 1891. 
