May, 1887.] NEW SPECIES OF USTILAGINEiE AND UREDINEiE. 55 
times with a faint tinge of lilac, then convex, soft, paler, becoming 
smoky-red or pale chestnut color, flesh reddish-white or grayish ; tubes 
at first concave or nearly plane, stuffed, colored nearly like tine pileus, at 
length paler, depressed around the stem, minute, round; stem stout, 
generally short, equal or slightly tapering upward, abruptly narrowed at 
the base, minutely furfuraceous, colored like or a little paler than the 
pileus, purplish-gray within ; spores subferruginous, .00045 to .0006 in. 
long, .0002 to .00025 in. broad; pileus 3—10 in. broad, stem 2—4 in. long, 
6—12 lines thick. Woods and their borders, July to September. It 
belongs to the section Edules. 
NEW SPECIES OF USTIL.AGINEAE AND 
UREDINEAE. 
BY J. B. ET/LIS AND B. M. EVf.RHART. 
We have received from Prof. F. L. Scribner, of the Department of 
Agriculture, Washington, D. C., samples of several grasses, from the 
Rocky mountain region, infested with forms of Ustilayineae, which we 
have not been able to refer satisfactorily to any published species and 
which we describe provisionally as new. Two Puccinias sent from 
Washington Territory by Mr. Suksdorf and an Ustilago sent from Mis¬ 
souri by 13. T. Galloway are also included. 
Tilretia fusca, E. & E. (N. A. F., 1,895).—In ovaries of Festuca 
microstachys. Spores mostly globose, 19—22 y or occasionally subovate, 
subelongated or otherwise irregular in shape, the surface covered with 
subhexagonal reticulations bounded by rather thick walls, about 14 ! l 
high, overspread and partially hidden by a dirty, subhyaline (gelatinous?) 
layer, which envelops the dark brown body of the spores, through which 
the projecting walls of the reticulations are scarcely prominent. T. 
sphcerococca, Fisch., and T. Rauivenhoffii , Fisch., have rather paler, 
larger spores, with larger and more prominent reticulations. 
Tilletia Montana, E. & E.—In ovaries of Sporobolus gracillimus. 
Spores globose, 19—22 y, or suboval, subelongated, 18—25 y ; epispore, 
consisting of two layers, the outer one hyaiine, about 24 y thick, entirely 
covering the reticulations, which have thinner walls and are rather more 
irregular in shape than in the preceding species ; the body of the spore is 
also lighter colored. 
Tilletia asperifolia, E. & E.—In ovaries of Sporobolus asperifo- 
lius , has spores globose or subglobose, 17—20 y , pale brown ; hyaline 
envelope ab< ut two y thick; reticulations subhexagonal or of irregular 
shape, with rather thick walls which rise through but hardly project 
above the surface of the enveloping, hyaline coat. Differs from both the 
preceding in its smaller spores and from the last also in the thicker walls 
of its reticulations, but is closely allied to the first-described species 
( T. fusca) which, however, has darker-colored spores. 
