Oct. 1902] 
North American Ustilagineae 
151 
UROCYSTIS AGROPYRI (Preuss) Schrot. — Hosts: 
Agropyron divergens, Wash.; A. repens, Mass., Verm.; Bromus 
ciliatus, la.; Calamagrostis canadensis, Ore.; Elymus arenarius, 
Greenl.; E. canadensis, la., Ill., Mo., Neb., Wise.; E. robustus, 
la.; E. virginicus, Ill. 
UROCYSTIS JUNCI Lagerh. — Host: Juncus balticus, 
Nev. 
UROCYSTIS GRANULOSA Clint, n. sp.—Sori in the 
spikelets, ovoid to oblong, about 5-10 mm. in length, chiefly 
confined to the inner parts but showing through the more or 
less infected glumes, forming a granular, black spore mass; 
spore-balls reddish to black brown, ovoid to spherical, not easily 
ruptured, chiefly 28-50^ in length; sterile cells reddish yellow, 
ovoid to subspherical, completely covering the spores, often some¬ 
what indefinite in appearance through the collapsing of outer 
wall, about 8-13^ in length; spores dark reddish brown, ovoid 
to spherical or polyhedral through pressure, smooth, about 13-- 
19 fi in length. 
Host: Stipa comata, Ida. (type). 
This species is based on a specimen in S. M. Tracy’s her¬ 
barium labeled Sorosporium granulosum Ell. & Tr. on Stipa 
comata, collected by Dr. F. V. Hayden in Idaho in 1859. It 
differs from the type of Sorosporium granulosum in the same 
herbarium on Stipa viridula in that the sori are in the spikelets,, 
and the spore balls, have fewer spores and possess a definite 
covering of sterile cells. 
UROCYSTIS HYPOXYIS Thaxt.—Host: Hypoxys erecta. 
Conn, (type), Mass. ! 
* Spores dark colored. (Entyloma.) 
ENTYLOMA LINEATA (Cke.) Davis.—Entyloma eras-, 
tophilum. Amer. auct. p. p. 
Host: Zizania aquatica, Conn., Ga. (type), Ill., Neb., S. 
Dak., Wise. 
ENTYLOMA CRASTOPHILUM Sacc.—Hosts: Holcus 
lanatus, N. Y.; Phleum pratense, la., Ill. 
ENTYLOMA IRREGULARE Johans.—Host: Poa praten- 
sis, Ill. 
ENTYLOMA SPECIOSUM Schrot. & Henn.—Hosts: 
Alopecurus geniculatus, Tex.; Panicum proliferum, Ill.; Pani- 
cum sp., Ill. 
ENTYLOMA CARICINUM Rostr.—Host: Carex rigida, t 
Greenland (type). 
