Davis—Parasitic Fungi in Wisconsin — I. 
85 
Ustilago lorentziana Thuem. which occurs at Madison on Hor- 
deum jubatum and which was recorded in the 4th supplementary 
list seems to have been omitted from the provisional list. 
Entyloma linariae Schroet. var. veronicas Wint. The newly 
formed spores of this smut were found to germinate readily in 
May but to gradually lose the power as the season progressed as 
had been found to be the case with E. floerkeae Holw. (2nd 
suppl. list, No. 487). The promyeelial spores are usually two 
(1-4) in number, 15-20 x 3y. 
Material wintered outdoors (May to May) germinated the fol¬ 
lowing spring in the same manner. 
Additional Hosts. 
Synchytrium aureum Schroet. 
In September, 1912, this was found at Millston, Jackson 
county on Lycopus virginicus, Lysimachia terrestris and leaves 
of blackberries that I have referred to Rubus hispidus and Ru- 
bus villosus. The infection was sufficient to indicate that each 
of these plants are normal hosts of the organism in that locality, 
Rubus villosus being least affected. No success attended spe¬ 
cial efforts to find other hosts. In 1913 it was collected at Athel- 
stane, Marinette Co., on Rubus hispidus but on no other host. 
In 1892 Synchytrium occurred rather abundantly in a bit of 
woodland near Berryville on Viola pubescens and Geum cana- 
dense and during the same season it was collected at Somers, 
but a few miles distant, on Ranunculus recurvatus. The infec¬ 
tion of the latter was limited and I have not seen it since on 
this host. It was' collected again at Berryville in 1894 soon 
after which the station was cleared and put under cultivation. 
In 1902 a collection on Viola pubescens was made at the Somers 
station. In 1907 considerable infection of the same host was 
observed at a station intermediate between the other two and 
during the same season very limited infection of Prenanthes 
alba at this station and of Pedicular is canadensis near Ka- 
cine was observed. The infection of the two latter hosts ap¬ 
peared to be accidental and temporary, the organism failing to 
get a permanent foothold. At Millston some of the affected 
leaves of Lycopus bore considerable hypertrophies often sur¬ 
rounded by purple discoloration but usually there was little dis- 
