PLATE 16. 



Chaetomieae. 



Fig. 1. Chaetomiuin pusillum, E. & E. natural size on hickory 

 hoop of a barrel in a cellar. 



2. A small group somewhat enlarged. 



3. A single perithecium. 



4. AD ascus. 



5. Three sporidia, 



6. Several of the peculiarly branching hairs of the mycelium 



surrounding the perithecia. 







u 



u 



