46 
OHIO BIOLOGICAL SURVEY 
threads, 4mmm. in diam., marked by four or five regular spiral bands, 
spinulose. Spores yellow, minutely warted, 9 to lOmmm. in diam. 
Common. 
6. H. leiotricha (Cke.) Lister. Sporangia scattered, subglobose, 0.5 
to 0.9mm. in diam., dull yellow, shining, stalked. Stalk solid, dark brown. 
Capillitium a tangled mass of sparingly branched smooth yellow threads, 
marked by faint spiral bands. Spores dull yellow, minutely warted, 9 to 
ISmmm. in diam. 
Cuyahoga Co. 
7. H. clavata (Pers.) Rost. Sporangia scattered or gregarious, clavate, 
or turbinate, 0.7 to 1.5mm. in diam, yellow, shining, stalked. Sporangium 
wall evanescent above, persistent below as a cup. Stalk hollow filled with 
spore like cells, brown or dark colored. Capillitium variable, of more or 
less branching yellow threads, marked by five or six prominent spiral 
bands, generally smooth. Spores pale yellow, minutely warted, 8 to 10mm. 
in diam. 
Abundant everywhere on logs, sticks, and bark. 
3. OLIGONEMA Rostafinski. 
Oligonema nitens (Lib.) Rost Plate VIII, Figs. 1, la, and lb. 
Sporangia distinct, clustered, minute. Capillitium scanty, marked by 
scattered rings and faint imperfect spirals or merely warted. 
A. Sporangia globose. 1. O. nitens 
A. Sporangia ovoid. 2. O. flavidum 
1. O. nitens (Libert) Rost. Sporangia clustered in small heaps, 
subglobose, 0.2 to 0.4mm. in diam., yellow, shining. Sporangium wall 
without granular matter. Capillitium of short, simple or branched, yellow 
elaters, smooth or marked by irregular and indistinct spiral bands, 
sometimes with ring shaped thickenings. Spores yellow, irregularly 
reticulated, 12 to 14mmm. in diam. 
Common on old logs. 
2. O. flavidum Peck. Sporangia crowded or heaped, ovoid, 0.3 to 
0.6mm. in diam., yellow, shining. Sporangium wall with minute granular 
thickenings arranged in fan like lines. Capillitium of short or long, simple 
or branched yellow elaters, marked by warts arranged in irregular spirals, 
and without regular spiral bands. Spores yellow, regularly reticulated, 
12 to 13mmm. in diam. 
Common. 
4. TRICHIA Haller. 
Trichia decipens (Pers.) Macbr. Plate IX, Figs. 6, 6a, and 6b. 
Trichia flavoginea (Batsch) Pers. Plate IX, Figs. 5, and 5a. 
Trichia scabra Rost. Plate IX, Figs. 4, and 4a. 
Trichia varia (Pers.) Rost. Plate IX, Figs. 7, and 7a. 
