280 Wisconsin Academy of Sciences, Arts, and Letters. 
Synchytrium cinnamomeum n. sp. Galls cinnamon brown, hemi¬ 
spherical to obtusely conical, scattered or aggregated, frequently 
confluent, 125-150/x in diameter; resting sori solitary, globose to 
elliptical to pyriform, 42-66/x in the longer diameter; wall brown, 
contents brown black, granular. On petioles and leaves of Ranun¬ 
culus recurvatus, Somers, Wisconsin, August 13, 1892 (type). 
Ranunculus septentrionalis, Iowa County opposite Spring Green, 
July 20, 1921. Readily recognized by the brown color which sug¬ 
gests rust. 
Synch 3 rtrmm nigrescens n. sp. Sori hypophyllous, scattered, 
subepidermal, at flrst pale yellow with abundant oil content, be¬ 
coming black with content in part black and granular, spherical to 
ovoid 80-180/x; wall thin, homogeneous, chitinous, black by re¬ 
flected, fuscous by transmitted light, outer surface smooth or 
minutely tuberculate. But slight prominences are produced, the 
sori often extending through to the upper epidermis without caus¬ 
ing hypertrophy. On Aster laterifiorus on bottom lands of the 
Wisconsin river at Spring Green, Lone Rock and Blue River. 
Plasmopara illinoensis (Farl.) n. comb. On Parietaria penn- 
sylvanica. This was described by Farlow {Bot. Gaz. 8: 332 [1883]) 
from collections made by Seymour at Quincy and Camp Point on 
the Mississippi river in southern Illinois. No further collections 
seem to have been made. Guy West Wilson gave a new description 
and referred it to his proposed genus Rhysotheca {Bull. Torr. Bot. 
Cluh 34: 407 [1907]). In 1921 it was collected at Blue Mounds, 
Ridgeway, Fennimore, Werley and Woodman. A collection from 
Blue Mounds made July 9 contains globose oospores 23-SOix in 
diameter with wall thick filling the rather thin-walled oogonia. 
Assuming that southern Wisconsin is the northern limit of this 
species its development was probably favored by the abnormally 
hot season of 1921. 
Phacidium taxi Fr. On Taxus canadensis. Crandon. The ex- 
ciple is thick and black and ruptures irregularly in the center. 
The asci are clavate-cylindrical, about 50x6ja. No mature spores 
were seen. 
Claviceps nigricans Tul. Sclerotia on Eleocharis palustris. 
Sturgeon Bay (J. E. Sanders), Madison (J. R. Heddle). 
Phyllosticta congest a Heald & Wolf {Mycologia 3: 8). On 
Prunus pennsylvanica. Devils Lake (C. E. Owens). 
