EXPLANATION OF PLATE VI. 



Comatriclta typliina^ Roth., p. 138. 

 A group of sporangia X 5- 

 A single spore X 1600. 

 Tip of the columella with its branches X 50 



Coinatricha louga^ Pk., p. 140. 

 A single emptv sporangium X 6. 

 A part of the same taken near the apex, X 60. 

 A spore X 1400. 



Cowatricha fulclirUa^ Bab., p. 139. 

 A single sporangium X 10. 

 The columella and capillilium X f'O. 

 Fig. Tjh. A single spore X 1600. 



Figs. 3f and 3^/, sporangia to wiiich the peridium still adheres although in 3r, 

 in shreds. 



Stemoiiitis maxima, Schw., p. 141. 

 Fig. 4. A group of sporangia X 3 



Fig. 4rt. A part of the columella and capillitium X 60. 

 Fig. 4/^ A single spore. X 1400. 



Stemonitis ferriiginca, Ehr., p. 142. 

 Fig. 5. A group of sporangia X 3- 



Fig. 5^. A single spore X 1400. 

 Fig. 5/^. A part of the capillitium with columella X 60. 



Stemoiiitis morgaiii, Pk., p. 142. 

 Fig. 6. A group of sporangia X 3- 

 Fig. 6a and 6c. Single spores, the latter X 1400. 

 Fig. 6h. A part of the columella and branches X 60. 



Fig. 7. A shorter \ariety of the same species with coarser meshes in capilli- 

 tium, X 3 

 Fig. 7(/. A part of the columella and net X 60. 



