Davis—Notes on Parasitic Fungi in Wisconsin — IX. 265 
the first of these species is referred to Synchytrium, the last one 
to Woroninella and all of the others to Pycnochytrium. If one may 
borrow from the usage in the rusts and represent repeating spores 
by II and resting spores by III they could be presented thus: 
II, III Synchytrium. 
Ill Pycnochytrium 
II Woroninella 
Physoderma menyanthis (DBy). Collected but once (1902) 
near Found lake in the northern part of the state. But little was 
seen. 
Physoderma vagans Schroet. But a single scanty collection 
has been made of this. It was found on bottom lands of the Wolf' 
river. [Collected since at Spring Green.] 
Cladochytrium maculare (Wallr.) has been collected only in 
the southern portion of the state (Kenosha, Racine, and Dane 
counties) where it is not frequent but sometimes rather abundant 
and able to maintain itself in one station for several succesive 
years. 
Urophlyctis major Schroet. Observed only in the northeastern 
part of the state in Kewaunee, Oconto and Marinette counties. It 
is infrequent. 
Urophlyctis pluriannulata (B.&C.) Farl. Not frequent but 
sometimes locally abundant on Sanicula in both southern and 
northern Wisconsin. On Zizia aurea it has been seen in but one 
station. This was in 1907 and no trace of it was found on this 
host at the station in subsequent years. 
Albugo bliti (Biv.) Kuntze. Frequent and abundant on Amar- 
anthus retroflexus and hybridus, often with development of abun¬ 
dant and conspicuous oospores; infrequent on other species and on 
Acnida. 
Albugo portulacae (DC.) Kuntze. Not infrequent and some¬ 
times abundant. 
Albugo Candida (Pers.) 0. Kuntze. Frequent and often abun¬ 
dant on various Cruciferae. 
Albugo tragopogonis (DC.) S. F. Gray. Frequent, although on 
some of the hosts it is but rarely seen. It is more frequent prob- 
