30 
OHIO BIOLOGICAL SURVEY 
uneven surface net. Spores violet gray, very faintly warted, 5 to 7mmm. 
in diam. 
(Ohio—Macbride). 
6. C. typhoides (Bull.) Rost. Sporangia gregarious, cylindrical, 
obtuse, at first silvery from the presence of the evanescent wall, then 
reddish brown, 2 to 3mm. high, stalked. Stalk black, one-third the total 
height. Columella reaching nearly to the apex of the sporangium. 
Capillitium a close network of fiexuous pale brown threads springing 
from all parts of the columella, the ultimate branches free or forming an 
uneven net in the lower part. Spores brown, marked by 4 or 5 prominent 
warts on the visible hemisphere, 6 to 7mmm. in diam. 
Common everywhere on rotten logs. 
Var. 1 —microspora Lister. Sporangia with surface net very close and 
fiexuous. Spores nearly smooth, 3.5 to 4.5mmm. in diam. 
(Ohio—Lister). On dead leaves. 
3. ENERTHENEMA Bowman. 
Enerthenema papillatum (Pers.) Rost. Plate V, Fig. 3. 
Sporangia gregarious, stalked. Stalk extending entirely thru the 
sporangium as a columella. The apex of the columella is expanded into 
a disc and from this the capillitium arises. 
1. E. papillatum (Pers.) Rost. Sporangia gregarious, globose, 0.5 to 
0.75mm. in diam., black or purple brown. Sporangium wall evanescent. 
Stalk conical, black. Columella traversing the sporangium and expanding 
at the apex into a shining disc 1 to 2mm. in diam. Capillitium springing 
from the edge of the disc as long slender black sparingly branched 
threads. Spores brown, minutely roughened, 8 to lOmmm. in diam. 
Hocking Co., (Cuyahoga Co.—Lloyd Herbarium), (Miami Valley— 
Morgan), (Ohio—Macbride). 
4. LAMPRODERMA Rost. 
Lamproderma violaceum (Fr.) Rost. Plate V, Fig. 6. 
Sporangia globose or ellipsoid, stalked. Wall iridescent, shining. 
Stalk black, penetrating the sporangium about half way as a colum¬ 
ella. Capillitium consisting of branched anastomosing threads, radiating 
chiefly from the apex of the columella. 
A. Capillitium arising from the apex of the columella in a few branches. 
1. L. arcyrionema 
A. Capillitium arising from the apex of the columella in very numerous branches. 
B. 
Tips ot branches colored. 
2. L. scintillana 
B. 
Tips of branches hyaline. 
C. 
Stalk 1mm. or less long, 
D. Spores 8 to lOmmm. in diam. 
3. L. violaceum 
D. Spores 11 to ISmmm. in diam. 
4. L. sauteri 
c. 
Stalk more than 1mm. long. 
5. L. columbinum 
