Davis—Parasitic Fungi of Wisconsin. 93 
Since this was written, Prof. G. P. Clinton, in 
North American UstUagineae, lias referred to this 
and Doassansia zizaniae, also a Wisconsin fungus, 
as follows: u Doassansia zizaniae on old stems of 
Zizania aquatica and BwTillia globulifera occur¬ 
ring on similar parts of Glyceria ftuitans 
do not seem to be true Ustillagineae but are more 
probably sclerotial stages of Ascomycetes.” ( Jour¬ 
nal of Mycology, £-63-130.) Both of these spe¬ 
cies I think are parasitic although the material dis¬ 
tribution would give a contrary impression. The 
latter sometimes is found in leaves alone in which 
case the affected leaves only suffer. When, how¬ 
ever, the culm is attacked, it seems to cause the 
death of the plant before the sclerotia (?) are 
formed. 
ADDITIONAL SPECIES—NOT BECOEDED IN THE 
PEEVIOUS LISTS. 
568. Synchytrium asari, Arthur & Holway. 
On Asa rum reflexum, Bicknell. Somers. A 
single station where it was fairly abundant in 1897 
and again in 1901. As far as I know, it has not 
been reported since the original collection at Ver¬ 
million lake, Minnesota. 
569. Peronospora aesinearum, Caspary. 
Conidia and oospores on Cerastium nutans, Eaf. 
E a,cine. 
570. Peronospora orisea, Ung. 
On Veronica Anagallis, L. Eacine. 
571. Peronospora rumicis, Corda. 
On Polygonum dumetorum, L. var scandens. 
Gray. Kenosha county. 
572. Peroxospora rube, Eabh. 
On Bubus villosus, Ait. Vilas county, July. 
