Fig, 11. 
Explanation of Figures. 
Fig. 1. A ripe plant from E. Bartholomew, Kansas. Fig. 2. A young plant 
showing felty cortex, from Dr. L. H. Watson, Chicago. Fig. 3. Section showing 
coluinelhe. Fig. 4 and 5. Obovate form from E. P. Ely, Texas. Fig. 6. Obovate 
form from Dr. Hollos, Hungary. Fig. 7. Specimen showing columellae and meth¬ 
od of dehiscence, from David Griffith, Nevada. Fig. 8. Capillitium (x 100). These 
spiny capillitium are characteristic of the genus. Fig. 9. Spores (x 1000). Fig. 
10 and 11. Mycenastrum Corium form Sterlingii, from E. B. Sterling, Denver. 
MYCENASTRUM CORIUM. 
