402 Wisconsin Academy of Sciences, Arts, and Letters. 
Fusicladium radiosum (Lib.) Lind var. balsamiferae n. var. 
Conidia 20-33 x 10-11/*, usually biseptate, the short basal and 
apical cells similar and obtuse, central cell elliptic-oblong. On 
Populus balsamifera. Sturgeon Bay, Wisconsin. I have not seen 
the Yenturia stage. 
Aecidium iridis Gerard has been shown by Whetzel and Arthur 
to be connected with a rust on Phalaris arundinacea that is ap¬ 
parently a race of Puccinia sessilis Schneid. The propinquity of 
abundant aecia on Iris and uredinia on Phalaris was conspicuous 
along the shore of a small lake near Wild Rose in July, 1918. 
In “Notes” IY (p. 676) there was a statement that the sorghum 
kernel smut upon which was based the record of Sphacelotheca 
sorghi (Lk.) Clinton in the preliminary list and thence to the pro¬ 
visional list, was S. cruenta (Kuehn) Potter as determined by 
Potter. This is not to be taken as indicating that S. sorghi (Lk.) 
Clint, does not also occur in the state. 
Tracy a lemnae (Setch.) Syd. was recorded in the third supple¬ 
mentary list on the basis of a collection on Spirodela polyrhiza in 
southeastern Wisconsin. I did not see it again until September, 
1917, when it was collected at Arcadia in western Wisconsin. The 
spores are usually crowded and prismatic [This was collected also 
at Chetek in September, 1918.] 
Telial specimens of Cronartium were collected on Bibes cynos- 
bati in 1918 at Schofield (C. E. Allen) and Keshena (R. H. Den- 
niston) in central Wisconsin. These locations are far removed 
from any known development of aecia. 
The station near Sturgeon Bay where Coleosporium sonchi-arven- 
sis (Pers.) Lev. was observed in 1912 and 1913 was visited in 1918, 
and uredinia were found to be present on leaves of Sonchus asper. 
The Aecidium on Euphorbia commutata recorded under the 
name Aecidium euphorbiae Gmel. in the provisional list is Aeci¬ 
dium tithymali Arth. (Bull. Torrey Bot. Club 45: 151, [1918]. It 
has been observed in Wisconsin at but the single station, where it 
seemed to be nearly extinct when I last saw it. 
Aecidium lysimachiae (Schlecht.) Wallr. has been connected 
with Puccinia limosae Magn. on Carex. 
