Davis—Parasitic Fungi of Wisconsin <. 85 
40. Microsphaera aeni, (Wallr.) Winter. 
(M. nemopanthis, Peck.) Oti N emopanthes fas- 
cicularis, Raf. Three Lakes. 
On Lonicera iatarica, L. (enlt.) Racine. Al¬ 
though the 1 latter host hears in Europe' the var. lonr 
icerae (DC.) the Racine material shows, when ma¬ 
ture', the 1 well developed recurved appendage tips of 
the type. 
43. PODOSPHAERA OXYACANTHAE, (DO.) DBy. 
On Spiraea salicifolia, L. Racine. Rather 
scarce on this host. 
45. Sphaerotheca iitjmuee, var. fuliginea^ (Schlect.) Sal¬ 
mon. (Sphaerotheca castagnei, Lev. Prelim. 
List.) 
On Lophanthus scrophulariaefolius, Benth. and 
Veronica serpyllifolia, L. Racine. On the latter 
host the cells of the perithecial walls are small as in 
S. humuli, (PC.) Burr, but Prof. F. S. Earle of 
the Hew York Botanical Garden, to whom a speci¬ 
men was sent, refers it to the variety because of 
“the small size of the perithecia and a certain soft¬ 
ness of texture.” 
In the Supplementary List Lactuca Floridana, 
Gaert., is given as a host of Sphaerotheca castagnei, 
Lev., but examination of the specimen in my herba¬ 
rium shows only an Erysiphe. 
49. Erysiphe poeygoni, DC. 
(Erysiphe communis, (Wallr.) Fr. Prelim. 
List.) 
On Parnassia Caroliniana, Michx. Madison. 
(Professors Tracy and Halsted.) This is Erysiph- 
opsis parnassiae, Halsted. Salmon (A Monograph 
of the Erysiphaceae) refers it to this species. 
64. Epichloe typhhsta, (Pers.) Tul. 
On Calamagrostis Canadensis, Beauv. Genoa 
Junction. 
