Bean—The Myxomycetes of Wisconsin. 1293 
color varies from dark golden to light yellowish brown, generally 
iridescent, shining; sporanges opening by jagged cracks on top; 
the statement that “it never shows at maturity the brilliant 
golden yellow fluff that hangs in masses about the open and 
empty peridia of T. favoginea/’ is somewhat misleading, for in a 
large percentage of the specimens the most noticeable feature 
is the woolly fluff, and the empty peridia under and around the 
margins of it. After a short exposure to air, light, and dust, 
the difference in the shade of yellow of the two species is scarcely 
distinguishable. Then again the description of the spores of 
T. favoginea by Macbride as being “in form irregularly glo¬ 
bose, 7 ’ the irregularity in the form of the spores of T. persimilis 
not being mentioned caused difficulty. Under a low-power lens, 
the spores of T, persimilis show such irregularity that one might 
easily think them to be dried, or shrunken, or otherwise distorted. 
The oil-immersion lens shows the bands which cause the irregu¬ 
larity to be fragmentary, unequal in width and pitted, giving a 
much interrupted margin to the spores, which I find to be 10-12^ 
in diameter. The capillitium is 4r-5y wide, never as wide as 6^, 
except in specimens gathered in Port Wing July 12, in which the 
capillitium is 7-8/x thick; none of the spores of this specimen 
were as small as lOy ; the longitudinal striae were also evident in 
this specimen. In the other specimens which I have, the striae 
are quite inconspicuous; I found spines on all the capillitium, 
though more abundant on some than on others ; the ends of the 
elaters often have 2 to 3 spines, the end sometimes enlarged. 
This species seems quite abundant in this locality. We have 
specimens from the cemetery and Vilas woods, from Elmsidel, 
from Blue Mounds, and from Port Wing. One group an inch 
long and three-quarters inch wide, is growing on weather-worn 
bits of wood almost as fine as sawdust, these lying upon a piece 
of dead leaf. Other specimens are on decayed wood, mostly 
poplar, or on the inside or outside of bark. All our specimens 
excepting the one from Port Wing were collected in October. 
