Davis—Notes on Parasitic Fungi in Wisconsin — X, 279 
I can not distinguish from this species either in the field or in the 
herbarium. Typical material of E. thalictri Schroet. was collected 
in the same locality. 
TJromyces appendiculatus (Pers.) Lk. Uredinia on Strophostyles 
helvola. Kichland County opposite Blue River. 
Puccinia graminis Pers. Uredinia on Poa annua. Black Earth. 
(McFarland & Davis). Spores 17-24xl3~17ju. 
Puccinia peridermiospora (E. & Tr.) Arth. On Fraxinus penn- 
sylvanica and var. lanceolata. These are probably the most sus¬ 
ceptible hosts of the Aecidium in Wisconsin. 
Puccinia polygoni-amphihii Pers. Uredinia on Polygonum Per- 
sicaria. Oconto. 
Pucciniastrum myrtilli (Schum.) Arth. Uredinia on Gaylus- 
sacia baccata, Oconto. 
Aecidium dicentrae Trel. the type locality of which is in Wis¬ 
consin has been shown by Mains to be the aecial stage of a 
Melampsoraceous rust on Laportea canadensis (Am. Journ. Bot. 
8: 445) which has been collected in Wisconsin at Hannibal, Jump 
River, Holcombe and Blue Mounds. For this Dr. Mains proposes 
the binomial Cerotelium dicentrae (Trel.) Mains & Anderson, a 
name which does not accord with the usage followed in this series 
of notes. [See Saccardo: De Diagnostica et Nomenclatura Myco- 
logica; admonita quaedam (Annates Mycologici 2:197.) English 
translation in Journal of Mycology 10:111-2.] I am therefore 
using Cerotelium urticastri Mains (loc. cit. 451). 
Additional Species 
Not previously recorded as occurring in Wisconsin. 
In August 1892 a Synchytrium on Ranunculus recurvatus was 
collected in Kenosha County and the following description written 
and filed with the specimen. As it was not seen again, however, 
some doubt arose as to its being distinct and it was recorded under 
S. aureum Schroet. in the provisional list which is doubtless an 
aggregate species as treated in Wisconsin. In 1921 it was found 
on Ranunculus septentrionalis at the base of the Wisconsin River 
bluff in Iowa County opposite Spring Green readily recognizable 
as being the same as the original collection. I therefore publish 
the description. 
