Davis—Parasitic Fungi of Wisconsin. 755 
672. Phytophti-iora thalicri Wilson & Davis. 
On Thalidrum revoiutum DC. Kenosha county and 
Racine. This occurred through the summer and 
fall. The conidia were germinating in specimens 
collected in October, the globose hyaline zoospores 
escaping through the apex of the conidium. Ap¬ 
parently with zoospore formation the conidium 
changes- in shape from elliptical to ovate by rea¬ 
son of the distal portion becoming conical. This 
has also been colected on Thalidrum dasycarpum 
F. &. L. at Mellen which is about 25 miles from 
Lake Superior and 300 miles from the other sta¬ 
tions. I have found this only in moist thickets. 
673. Peronospora floerkeae Kellerm. 
On FloerJeea proserpinacoides Willd. Collected by 
Prof. E. W. D. Holway at St. Croix Falls at 
about the same time that the type material was 
collected in Ohio by Dr. Kellerman. That is the 
only Wisconsin collection of which I have knowl¬ 
edge. 
674. Taphria deformans (Berk.) Tub 
On Prunus Persica Sieb. & Zucc. (cult.) Racine. This 
name was used in the supplementary list (Ho. 
274) for what is now considered to be a distinct 
species. 
674$. Taphria potentillae (Farl.) Johans. 
On Potentilla arguta Ph. Kenosha. A recent col¬ 
lection not yet carefully examined. 
675. Laboulbenia gyrinidearum Thaxt. 
On Gyrinus sp. (?) Madison. (Prof. R. A. Harper.) 
676. Hypomyces lateritius (Fr.) Tub 
On Ladarius sp? Eagle Heights. (R. A. Harper.) 
677. Hypomyces viridis (A. & S.) Sacc. 
On (?) Eagle Heights (R. A. Harper) ; Brule, (J. B. 
Overton). 
2—S. A. 
