Dean—The Myxomycetes of Wisconsin. 1291 
yellow, covered by a delicate fine-meshed network, or simply 
spinulose under low power, 10-12//,. Fructifications two or more 
inches in length and half as wide are not infrequent on the lower 
side of fallen stems in forests of deciduous trees.’’ 
Lister’s description varies but little from the above. He says 
the elaters are 4—6/* thick, with four or five bands arranged in 
somewhat irregular spirals, with spines, or nearly smooth, the 
ends acutely conical or with the bands produced at the apex 
in more or less diverging points, longitudinal striae rarely evi¬ 
dent. He finds the spores minutely reticulated .... or irregu¬ 
larly warted, the spore border being reduced to a spinulose mar¬ 
gin 9-12// wide. 
Massee says the color varies from pale yellow through dirty 
orange to brown. He finds the elaters to be 6-8//, thick, and that 
the spores have a fine network of raised lines. 
My specimens might easily be mistaken from their general ap¬ 
pearance for some of those of T. persimilis. The color of the 
most of the T. scabra however, approaches nearer to orange than 
does that of T . persimilis. The manner of growth, closely 
crowded in circular patches, is similar to that of T. persimilis, T. 
favoginea , and even of some of our specimens of T. varia. Under 
the lens the distinction between this species and the others named 
is quite marked. The elaters are generally long, but in one 
group I find many that are quite short. They are 4-6/* wide, 
the apices short, acuminate, or with one or two spines divergent. 
The spiral bands are 3-4, spinulose, closely, sometimes irregu¬ 
larly wound. The spores are globose, regular, with fine reticula¬ 
tions, 10-12/* in diameter. In one of my specimens the capillit- 
ium hangs in a woolly mass above the empty calyculi, as de¬ 
scribed by Macbride for T. favoginea. 
We have specimens gathered at five different times in October 
1903, three from the cemetery woods, and two from Blue Mounds. 
One specimen from Blue Mounds, collected in April 1904, was 
evidently the fruit of the year before. All were growing on 
dead bark. 
