EXPLANATION OF PLATE IV. ^ : 



Trichia affinis, Dc By., p. i3i- 

 V'ar. iuter media X n.bout 6. 

 Spore of same species X 1400. 



A second spa)-e to show varying epis])oric net-work. 

 Tip of elater, shows vertical connecting bands. 



Tricliia fallax, Pers., p. i jS. 

 -Sporangia X about S. 

 A spore of the same species X 1400. 

 Figs. 2b and 2c. Elaters of the same species X about 225. 

 Trichia varia, Pers., p. 229. 

 Sporangia X about 8. 

 A spore of the same species X 1000. 

 An elater of the same species X 750. 



Trichia scab r a., Rost., p. 132. 

 Spoiangia X about 8. 



A single spore of the same species X 1400. 

 An elatcr-tip of the same X 1400. 



Trichia chryrospeniia. Bull., p. 130. 

 Sporangia X about 8. 

 A sii-.glc spore of the same X 1400. 

 A single elater-tip of the same X 1400. 

 Tricliia affinis var. abriipta. 

 An elater-tip X 1400. It will be noticed that the spirals arc con- 

 nected by vertical bars. See p. 131. 

 A single spore of the same variety X 1400. 

 Fig. 6^. A single spore, from the same sporangium as da. 

 Fig. 6c. Trichia ajp)iis, var. ajfi'/iis, a single spore X 1400. 

 Fig. 6(/. Tip of an elater from the same, X 1400. 



