PLATE XXX. 



1, 2. MlCROPORELLA VIOLACEA, p. 216. 



3. , var. a. 



} Crag form, showing the diversities in 



the size of the zocecium. 



5. SCHIZOPORELLA CRUENTA, p. 270. 



6. SCHIZOPORELLA VENUSTA, p. 276. 



6 a. --- , showing the form of the orifice and the 

 avicularian area. 



7. -- , showing a group of more or less aborted 



cells. 



8, 9. SCHIZOPORELLA DISCOIDEA, p. 265. 



