175 
pedicel attached either to the septum or near it, and the epispore 
of both cells distinctly thickened at the apex. 
On Paspalum virgatum, New Orleans,.La., November, 1894. 
UstiLaco Crus-Gatii n. sp. Involving the panicles and upper 
nodes, making the panicles abortive and forming pustules some- 
times I cm. in diameter at the nodes; spore masses powdery, 
black, at first covered by a gray membrane; spores oval or sub- 
globose, fuscous, sharply echinulate, 9-10 by 11-13 p. 
On Panicum Crus-galli, Salt Lake City, Utah, August, 1887. 
This seems to approach U. AMaydes, but the spores, though 
equally echinulate, are uniformly larger and more elongated. 
UstILaGo. TONGLINENSIS n. sp. Spore masses infesting the 
Ovaries and causing the glumes to open widely at maturity, black ; 
spores globose, dark brown, sharply and thickly echinulate, 9-11 y. 
On Jschaemum ciliare, Tonglin, Singapore. H. N. Ridley. 
UsTILAGO ORNATA n. sp. Infesting the ovaries. Spore masses 
black, pulverulent, 20-30 mm. in diameter; spores subglobose, 
very thickly beset with strong and prominent echinulations which 
give the spore a burr-like appearance, 12-12 by 15 yp. Panicles 
bearing affected ovaries always remain partially enclosed within 
the sheath of the upper leaf. 
On Leptochloa mucronata, Starkville, Miss., November, 1894. 
UstTILaGo PERTUSA n. sp. Infesting the ovaries ; spore masses 
hard and compact, black, finally pulvinate; spores small, globose, | 
€pispore covered with prominent irregular verrucose projections, 
5-7 fe 
On Setaria macrochaeta, Queensland. F. M. Bailey, 1890. 
Ustiraco pustutata n. sp. Infesting the ovaries, or forming 
rounded bullate swellings which often surround the entire stem 
and branches of the panicle, or form irregular distortions on the 
leaves and sheaths; spore masses dark brown, long covered by a 
stramineous membrane which is a distortion of the tissues of the 
host, 25—75 mm. in diameter; spores dark brown or fuscous, sub- 
globose or oval, cell-wall very thin, slightly echinulate, 7.5 to 9 y., 
or 7 by 9 ps. 2 
On Panicum proliferum, Starkville, Miss., October, 1894. 
Dimerosporium MacnoriaE n. sp. Epiphyllous, on small in- 
_ definite areas ; mycelium of dark brown irregular branching and 
Septate hyphae; conidia clavate, dark colored, 4-5-septate, 7-8 
by 45-55 #; perithecia depressed-hemispherical, black, usually in 
clusters of 5 to 10, astomous, 50-100; asci numerous, broadly 
- oval or obovate, 8:spored, 35-40 by 45-50, paraphysate; para- 
physes thread-like, colored towards the tips; sporidia biseriate, at 
