156 
Davis—Wisconsin Parasitic Fungi. 
25. Plasmopara australis, (Speg.) Swingle. ( Peronospora, 
Prelim. List.) 
28. Sclerospora graminicola, (Sacc.) Schroet. ( Peronospora , 
Prelim. List.) 
The changes made in the list of Erysiphece are to bring it in¬ 
to conformity with the monograph of the North American 
species of the family, by Prof. T. J. Burrill in North American 
Pyrenomycetes. 
31. Unclnula salicis, (DC.) Winter. (W. adunca , (Wallr.) 
Prelim List.) 
On Populus tremuloides , Michx. Racine. On 
P. tremuloides , Michx., and P. angulata , Ait. 
(Tracy and G-alloway- in Journal of Mycology, 
IV.—35. 
32 and 33. Uncinula 'negator, (Schw.) Burrill. (V. subfusca , 
B. & C., and XJ. Americana , Howe, Prelim. List.) 
On Vitis cordifolia, Michx. Racine. 
34. Uncinula circinata. C. & P. 
On Acer saccharinum , Wang. Racine. 
37. Microsph^ra diefusa, C. & P. 
The fungus on Lathyrus ochroleucus , Hook, referred here in 
the Prelim. List would now probably be placed in Microsphcera 
ravenelii , Berk. 
36, 38, 40. Microsph^ra alni, (DC.) Winter. (Microsphcera 
friesii, Lev., M. pulchrq, C. & P., and M penicil- 
lata , (Wall.) Prelim. List. 
These species, with others, are united by Burrill under the 
above name. 
On Ilex certicillata , Gray, Viburnum dentatum r 
L., Betula pumila, L., Carpinus Caroliniana^ Wal¬ 
ter, and Fagus ferruginea , Ait. Racine. 
39. Microsphcera grossulari^e, (Wallr.) Lev. (Microsphcera 
Van Bruntiana , Ger. Prelim. List.) 
