164 Davis—Wisconsin Parasitic Fungi. 
Erysiphe^:. 
276. Erysiphe galeopsidis, DC. 
On Scutellaria lateriflora , L. Racine. On Scut - 
ellaria parvula, Michx. “Wisconsin.” (Tracy & 
Galloway, Journal of Mycology, IV-34.) 
277. Microsph^ra ravenelii, Berk. 
On Lathyrus ochroleucus , Hook, and L. venosus , 
Muhl. Racine. The specimens on the former 
host, referred to Microsphcera diffusa , C. & P., in 
the Preliminary List, would probably be placed 
here by Prof. Burrill. (Bulletin of the Illinois 
State Laboratory of Natural History, IT-420.) 
278. Microsphcera semitosta, B. & C. 
On Cephalanthus occidentalism L. Eagle Lake, Ra¬ 
cine county. Rare. Perithecia sparsely formed. 
279. Microsphcera yaccinii, C. & P. 
On Gaylussacia resinosa, Torr. & Gray. Berry- 
ville. Neither common nor abundant. 
280. Sph^rotheca epilobii, (Lk.) DBy. 
On Epilobium coloration, Muhl. Racine. 
281. Sphcerotheca humuli, (DC.) Burrill. 
On Geum album , Grnel., Geum Virgmianum , L., 
and Agrimonia Eupatoria, L. Racine. Potentilla 
palustris , Scop. Kansasville. On Geum macro - 
phyllum , Willd. “Wisconsin.” (Tracy & Gallo¬ 
way, Journal of Mycology, IV-34.) Probably the 
specimens on Agrimonia Eupatoria , L., and those 
on Rubus triflorus , Rich., would now be placed 
here. (Prelim. List. No. 45.) Common and 
abundant. 
282. Sph^rotheca mors-uvce, (Schw.) B. & C. 
On Ribes floridum , L. Racine. The mycelium is 
abundant on species of Ribes, but the perithecia 
are not common and the only specimen in my 
herbarium is on the above host. 
