NEW NORTH AMERICAN UREDINES. 81 
Puce. emaculata, Schw.,on Panicum capillare. The resem- 
blance of the teleutospores is indeed a nearly perfect one. 
But there are some other differences of great constancy, 
which render it necessary to separate them. The Puce. emacu- 
lata is amphigenous in both its generations, whilst Puce. 
Panici is always epiphyllous. Besides the uredospores of 
the latter species are greater and the spinosity of their mem- 
brane is more pronounced than in Puce. emaculata. 
Puccinia subnitens, D. Uredospores subglobose, brown, 
extremely finely verrucose, with numerous germ-pores, 23- 
24 x 20-22u. Teleutospores: sori black, firm, pulvinate, 
mostly disposed in long rows and confluent; spores oblong 
or elliptical, rounded at both ends, slightly constricted, apex 
considerably thickened, often conical, 32-48 x 17-25, smooth, 
brown. Pedicels firm, colorless, longer than the spores. 
On Distichlys spicata. Montana, leg. Anderson, comm. 
J. B. Ellis. 
This species is very different in every respect from Puce. 
Distichlydis, Ell. et Ev. 
Pucecinia adspersa, D. & H. Uredo: sori on the 
sheaths and on the leaves amphigenous, very inconspicuous, 
oblong, long covered by the epidermis. Spores globose or 
ovoid, 22-26 x 20-22, with colorless finely echinulate mem- 
branes and golden contents. Teleutospores: sori puncti- 
form, scattered or associated on the sheaths in long rows, 
blackish, covered by the epidermis. Teleutospores very 
irregular, truncate at both ends or attenuated below, often 
angular, slightly thickened at the summit, constricted or not 
at the septum, 30-50 x 16-204, membrane clear-brown, con- 
tents retaining long a bright golden color. Pedicels short. 
On an unknown grass. Modoc Oo., Oal., July 30, 1894, 
leg. Frank P. Nutting. 
Puccinia effusa, D. & H. Mcidia hypophyllons, less 
abundantly epiphyllous, covering widely spread patches on 
the stems, petioles and at the base of the leaves or forming 
