NOTES ON PARASITIC FUNGI IN WISCONSIN—XI 
J, J. Davis 
The Synchytrium that has been reported as occurring in Wis¬ 
consin on Lycopus and referred to Synchytrium aureum Schroet. 
has been found to develop summer sori and consequently cannot be 
a form of that species. As the summer sori develop an empty basal 
cell I am now referring it to Synchytrium cellulare Davis. The 
galls of the summer sori are simpler than in the type of that 
species on Boehmeria cylindrica. The summer sporangia are 
globose to polyhedral, 18-24//, in diameter. The resting sori some¬ 
times develop in prominent multicellular galls. I am now labeling 
this var. lycopodis n. var. In addition to the ordinary host, Lyco¬ 
pus unifloruSj one collection has been made on L. americanus. Ves- 
tergren’s Micromycetes rariores selecti 1673 is the form referred 
to. It may be that forms on other hosts in Wisconsin that have 
been referred to S, aureum will be found to form summer sori when 
collections have been made at the proper time. 
Fig. 1. Left, two conidipliores of Pldsmopara Tcellermani bearing conidia. 
Right, apical portion of a conidiophore with conidia more highly magnified. 
Drawn by E. M. Gilbert with the aid of camera lucida. 
The record of Iva xanthifolia as a host of Albugo tragopogonis 
(D.C.) S. F. Gray in the provisional list was an error, the fungus 
on that host being Plasmopara kellermani (Ell. & Hals.) Swingle. 
