77 
roughened, 20-22 by 23-26//; teleutospores clavate or obloug, not con¬ 
stricted, thickened above, usually truncate with a broad flat apex but 
often pointed or irregular, narrowed below, smooth, 14-18 by 42-55//; 
pedicel very short. Allied to P. coronata , Cda., but the terminal proc¬ 
esses are either wanting or only rudimentary. 
Uredo peridermiospora, n. s. On Spartmaglabra , Ocean Springs, 
Miss., Tracy, September, 1889. Epiphyllous, sori linear, near the base 
of the leaf, long covered by the remains of the ruptured epidermis; 
spores bright red, pyriform, echinulate, much thickened at the apex, 
19-22 by 36-45//; pedicel short but distinct. 
Uredo nysse^e, n. s. On Nyssa capitata , Jackson, Miss., Tracy, 
November, 1888. Hypophyllous, sori minute and scattered over the 
entire under surface of the leaf, but not confluent; spores globose to- 
pyriform, epispore thin, minutely echinulate, 12-15 by 15-30//. 
Ustilago BUCHLOES, n. s. On leaves of Buchloe dactyloides , Cool- 
edge, New Mexico, June, 1887. Sori cylindrical, mostly about 1 cen¬ 
timeter long and 2 millimeters thick, covered by a thin gray membrane 
and filled with the black, subglobose, very minutely echinulate-rough- 
ened spores, 12-15// in diameter. The sori occur on either side of the 
leaf, mostly near the tip, and resemble miniature sausages; sometimes 
two being fimnd exactly opposite each other on the same leaf. 
Cintractia AVENiE, 7i. s. On Arena elatior , Starkville, Miss., July, 
1889. Transforming the ovaries into a compact black mass about as large 
as a small shot, made up of compact masses of subglobose spores 5-6// 
in diameter, hyaline at first, brown at maturity; epispore smooth and 
comparatively thin. 
Sorosporium granulosum, n. s. On Stipa viridula , Trinidad, Colo., 
Tracy, June, 1887. Involving the entire flower-spike, which becomes so 
aborted that it barely opens the sheath of the upper leaf; spore masses 
globose or irregular, 50-75// in diameter, composed of 20-50 smooth, 
globose, or by pressure irregular spores, 14-16//. 
Ustilago HLLARiiE, 7i. s. On Hilaria Jamesii, Albuquerque, N. Mex., 
Tracy, June, 1887. Involving the entire flower-spike, and forming a com¬ 
pact cylindrical or ovate mass J-l by £ centimeter, inclosed in a thin gray 
membrane; spores oval, brown, sharply echinulate, 10-14 by 12-15//, or 
globose; 12-12//. JJ. cylmdrica , Pk. has smaller spores. 
Ustilago oxalidis, n. N. A. F. 2424. Starkville, Miss., Tracy, 
May, 1888. In ovaries of Oxalis stricta, filling the entire ovary with a 
mass of reddish-brown spores; spores globose, 10-12//; epispore rather 
thick, sharply echinulate. 
5461-No. 2-3 
