THE SLIME MOLDS OF OHIO 
35 
D. Cup present, sometimes wanting in C. tenella. 
F. Free rays numerous. 
F. Free rays few or none. 
4. C. intricata 
5. C. tenella 
C. Nodes not rounded. 
G. Nodes angular. 
H. Cup replaced by strong parallel ribs. 
G. Nodes polygonal. 
H. Cup well defined. 
6. C. aurantiaca 
7. C. splendens 
8. C. languescens 
B. Sporangia purple. 
I. Sporongia reddish purple. 
J. Sporangia 1mm. in diam. 
J. Sporangia 0.4mm. in diam. 
9. C. purpurea 
10. C. elegans 
11. C. violacea 
I. Sporangia blue purple, very minute, 0.2mm. in diam. 
1. C. argillacea Pers. Sporangia crowded, globose, 0.5 to 0.8mm. in 
diam., clay colored, stalked, sometimes nearly sessile. Cup poorly defined. 
Sporangium wall sub persistent, with thickened bands forming an irregular 
net without expanded nodes. Stalk cylindrical, furrowed, dark brown, 
arising from a well developed hypothallus. Spores pale, minutely 
roughened, 5 to 6mmm. in diam. 
(Miami Valley^—Morgan), (Ohio—Macbride). 
2. C. dictydioides Cooke and Half. Sporangia gregarious, 0.6mm. in 
diam., dull brown, stalked. Cup almost obsolete; the nodes in the lower 
part of the net elongated and confluent forming ribs. Nodes numerous, 
with rounded but often irregular outlines, connected by slender threads 
and with many free rays. Stalk long, slender. Spores pale brown, nearly 
smooth, 5 to 6mmm. in diam. 
Erie Co., (Ohio—Macbride)., (Licking Co.—Herbarium of Professor 
Bruce Fink), (Lorain Co.—Oberlin College Herbarium). 
3. C. microcarpa (Schrad.) Pers. Sporangia gregarious, globose, very 
small, 0.1 to 0.3mm. in diam., purplish brown, stalked. Cup replaced by 
a close regular net, the nodes of which are subglobose, prominent, about 
lOmmm. in diam., and densely charged with dark granules 1 to 2mmm. in 
diam. The rounded nodes are connected by five or six slender threads. 
Stalks slender, long, dark brown. Spores pale red minutely roughened. 
5 to 6mmm. in diam. 
(Miami Valley—Morgan). 
4. C. intricata Schrad. Sporangia gregarious, globose, 0.5 to 0.7mm, 
in diam., yellowish brown, stalked, erect or nodding. Cup one-third the 
height of the sporangium, yellowish brown, with a toothed margin. Net 
regular with numerous prominent dark brown, rounded, and branching 
nodes, connected by from five to eight slender threads and with many 
free rays. Stalk subulate, 1 to 3mm. high, dark brown, spores yellowish 
brown, nearly smooth, 5 to 6mmm. in diam. 
Erie Co., (Miami Valley—Morgan). 
