EXPLANATION OF PLATE XIII 



llrtrrolr'uhia i/ahyirlLr Ma^s., p. 257. 

 Fig. 1. A Rroup of sporangia, one expanded, the others empty, X 15. 

 Fig. 1 a. Capillitiiim of the species, X 600. 



C.alomma aiinum Morg., p. 266. 

 Fig. 2. A cluster of sporangia, magnified about 15 times. 

 Fig. 2 a. The tip of an elater of the same species, X 1000. 

 Fig. 2 h. A single spore, X 1000. 

 Fig. 2 c. A bit of the sporangium wall, X 600. 



Stcmonitis pallida Wing., p. 169. 

 Fig. 3. Sporangia, magnified about 5 times. 



Comal) icha pulchclla (Hab. ) Rost., form C. pcrsoojtii R,, p. 183 

 Fig. 4. Sporangia, magnified about 15 times. 

 See Addenda, d, p 283. 



Strmonitis carolinnisis Macbr., p. 170. 

 Fig. 5. Sporangia, magnified about 5 times. 



(Uastodcrma deharyanutn Bl\tt., p. 191. 

 Fig. 6. Sporangium, magnified about 60 times. 



Truliia <ontor/a Rost., p. 269. 

 Fig. 7. Tip of an elater, X 1400. 

 Fig. 7 a. Spore of the same species, X 1400. 



Triihia hotryth Pers., p. 274. 

 Fig. 8. Tip of the elater, X 1400. 

 Fig. 8 a. Spore of the same species, X 1400. 



