42 
OHIO BIOLOGICAL SURVEY 
of pale pink threads, free from the cup, sparingly branched, and marked 
by cogs, half rings, or spines arranged in a loose spiral and of small 
scattered spinules; free ends more or less numerous. Spores pale pink, 
nearly smooth, 6 to 8mmm. in diam. 
Not uncommon. 
4. A. denudataCL.) Sheldon. Sporangia crowded or gregarious, ovoid, 
or short cylindrical, 1 to 2mm. high, varying in color from crimson to brown, 
stalked. Cup membranous, firm, shining, plaited. Stalk cylindrical, slender, 
about as long as the sporangium, brown, filled with spore like cells. 
Capillitium a close elastic network of pale red threads, firmly attached to 
the cup and with few or no free ends; threads marked by prominent cogs 
or spines and half rings arranged in a loose spiral. Spores pale red, nearly 
smooth, 6 to 8mmm. in diam. 
One of our most abundant Slime Molds, being found everywhere on 
rotten logs and sticks. 
5. A. pomiformis ( Leers) Rost. Sporangia scattered, subglobose, or 
ovoid, small, yellow, stalked. Stalk slender, buff, one-third mm. high, filled 
with spore like cells. Capillitium a loose network of yellow threads about 
3mmm. in diam., marked by transverse bands and spines arranged in an 
open spiral. Spores nearly colorless, slightly warted, 7 to 8mmm. in diam. 
Cuyahoga Co., Hocking Co., Lucas Co. 
6. A. cinerea (Bull.) Pers. Sporangia gregarious or scattered, cylin¬ 
drical or ovoid, from 1 to 3mm. high, ashen gray, sometimes yellowish, 
stalked. Stalk cylindrical, furrowed, about equal to the sporangium in 
length. Capillitium a close network of pale yellow threads, firmly attached 
to the cup; the threads, 2 to 4mmm. in diam., are marked with warts or 
spines except near the base of the sporangium where they are larger and 
smoother. Spores nearly colorless, slightly warted, 6 to 8mmm. in diam. 
Common everywhere on logs and sticks. 
7. A. digitata (Schw.) Rost. Sporangia in clusters of from 3 to 12, 
the stalks being united. Sporangia cylindrical, 3 to 4mm. high, otherwise 
as A. cinerea of which it is considered by some a variety. 
Not uncommon. 
8. A. globosa Schwein. Sporangia scattered or gregarious, globose, 
0.5mm. in diam., white or pale yellow, stalked. Stalk slender, yellowish, 
filled with spore like cells. Capillitium a close network, slightly elastic, of 
colorless threads 2 to 4mmm. in diam., marked with warts or spines usually 
in spirals. Spores colorless, slightly warted, 6 to 8mmm. in diam. 
On the male catkins and spines of fallen burrs of the Chestnut. Not 
uncommon in the parts of the state where this tree is found. 
