BOTANICAL GAZETTE. 39 
31. P. Lophanthi. 
Also on Lophanthus nepetoides, Ilingis, Prof. T. J. Burrill and C. A, Hart. 
Since the publication of the Enumeration I have received additional speci- 
mens of this species on L. serophulariefolius from Prof. Arthur, in which, as well 
as in Mr. Hart’s specimens, I have found oospores. They are about 22~26.5y in 
diameter, considerably smaller than the oogonia, which are from 38—46y in di. 
ameter. The wall of the oospores is thin and delicate, of a pale yellow color, 
and the exospore is nearly smooth. 
31*. P. ScHLEIDENIANA DeBary |. c. p. 118, PI. XIIT.,. 
ae : 
P. Schiecidenit Unger, Bot. Zeit. 1847, p. 315, 
P., alliorum Fuckel. Fung. Rhen. 41. 
__ Conidiophores stout, naked below, above rather sparsely and 
irregularly dichotomous, branches short, tips stout, flexuous, ap- 
_ proximate in pairs. Conidia very large, 40-60» long by 22-35, 
obovate, usually papillate at the apex and attenuated at the base ; 
dark violet colored. Oospores % 
On Allium Cepa. 
Ithaca, Wisconsin, Trelease, Europe. 
A strongly marked species, characterized by its large conidia attenuated at 
the base and the short, stout, rather irregularly placed branches. According 
to Prof. Trelease it is abundant in Wisconsin, and does decided harm to the 
from 1847. The name given by DeBary is P. Schleideniana Unger, and is gen- 
erally adopted by recent writers. The reason for the change in name is un- 
known to me, but is probably on etymological grounds. 
31**, P. @ramtnicoia (Sace.) Schroeter. 
; inieol . Ven. No. 496, 1876. 
Protomyces 4 Sino gop Sace c. Nas aly Prov. Brand. 26 Apr. 1878. 
proper 
oospores enveloped rather closely by the thick lamellated, yel- 
On leaves of Setaria viridis. 
La Crosse, Wis., Mr. Pammel. Comm. Trelease. Europe. 
This curious species, for which Schroeter has created the subgenus Selero- 
spora, has been found in several European countries, but is at present only 
known at La Crosse in this country. The oospores of the Wisconsin specimens 
are precisely like those of European specimens. The description given above 
was taken from American specimens as far as the oospores are concerned, the 
