EXPLANATION OF PLATE VI 



Coniatricha stetiiiniitis (Scop.) Sheld., p. 130. 

 Fig. i. A group of sporangia, x 5. 

 Fig. i a. A single spore, x 1600. 

 Fig. i b. Tip of the columella with its branches, x 50. 



Comatricha longa Peck, p. 125. 



Fig. 2 A single empty sporangium, x 6. 



Fig. 2 a. A part of the same taken near the apex, x 60. 



Fig. 2.b. A spore, x 1400. 



Comatricha persoonii Rost., p. 132. 



Fig. 3. A single sporangium, x 10. 

 Fig. 3 a. The colmnella and capillitium, x 60. 

 Fig. 3 b. A single spore, >. 1600. 



Figs. 3 c and 3 <Y. Sporangia to which the peridium still adheres, although in 

 3 c in shreds. 



Stemouitis maxima Schw., p. 116. 



Fig. 4. A group of sporangia, x 3. 



Fig. 4 a. A part of the columella and capillitium, x 60. 



Fig. Afb. A single spore, x 1400. 



Stemonitis axifera (Bull.) Macbr., p. 120. 



Fig. 5. A group of sporangia, > 3. 



Fig. 5 a. A single spore, X 1400. 



Fig. 5 b. A part of the capillitium with columella, x 60. 



Stemonitis morgnni Peck, p. 1 18. 

 Fig. 6. A group of sporangia, > 3. 

 Figs. 6u and 61. Single spores, the latter x 1400. 

 Fig. 6b. A part of the columella and branches, x 60. 



Fig. 7. A shorter variety of the same species with coarser meshes in capil- 

 litium. x 3. 

 Fig. 7 a. A part of the columella and net. x 60. 



=44 



