CLINTON: NORTH AMERICAN USTILAGINEAE. 
459 
Exsiccati: Entyloma speciosum Schrot. & P. Henn., on Panicum pro- 
liferum, Seym. & Earle, Econ. Fungi Clinton Ust. Supp., C 32, on Panicum 
sp., Same, C 33. 
Sori in the leaves, oval to linear, about 2-10 mm. long, though 
usually completely losing individuality by lateral and terminal fusing 
and thus occupying more or less of the leaf, lead colored, perma¬ 
nently covered by epidermis and completely filling the space between 
its layers ; spores dark brown, rather firmly agglutinated, polyhe¬ 
dral (occasionally subspherical) to more irregular or elongated, 
smooth, chiefly 8-14 /x, most elongated rarely 16 /x, in length. 
Hosts : Alopecurus geniculatus , Tex.; Panicum proliferum, Ill.; 
Panicum sp., Ill. 
Specimens of the above species on Panicum from South America 
were received from Hennings, of Berlin, and compared with the 
American specimens. While the Illinois collections show more 
angular spores with less evident swollen remains of the hyphae sur¬ 
rounding them as part of their cell wall, they agree closely in other 
respects. On Alopecurus the sori usually occur as distinct, elliptical 
to subcircular spots. This species has the appearance of an Ustilago. 
It is distinguished from Entyloma crastophilum by the larger more 
merged sori and by the larger, more irregular and darker colored 
spores. The writer’s efforts to germinate it have uniformly failed. 
Entyloma caricinum Rostr. 
Entyloma caricinum Rostr., Medd. orn Gr0nland, 3 : 532. 1888. 
Sori in leaves, oblong, gregarious, 1-2 mm. in length, black; 
spores brown black, rather firmly coalescing, variable, angular, 
smooth, 15-22 y in length. 
Host: Carex riyicla , Greenland (type). 
This fungus has been reported but the one time and Professor 
Rostrup in answer to a request for a specimen stated that unfortu¬ 
nately he had no more specimens, so the writer has not been able to 
examine this species. From the description it seems closer related 
to Entyloma speciosum than to any of the other species described 
here. Its germination has not been reported. 
