XX11 EXPLANATION OF THE PLATES. 



4. B. calcarea. 



a. plant, nat. size. 



b. leaf, magnified. 



c. sporangium, magnified. 



d. portion of inner peristome of B.fontana, magnified. 



5. Entosthodon Templetoni. 



a. plant, nat. size. 



b. leaf, magnified. 



c. sporangium, magnified. 



6. Funaria hygrometrica. 



a. plant, nat. size. 



b. leaf, magnified. 



c. sporangium, magnified. 



d. portion of outer peristome, magnified. 



e. portion of inner peristome. 



7. Meesia uliginosa. 



a. plant, nat. size. 



b. leaf, magnified. 



c. sporangium, magnified. 



d. portion of peristome, magnified. 



e. spore, magnified. 



PLATE XVII. 



1. Cinclidium stygium. 



a. plant, nat. size. 



b. leaf, magnified. 



c. sporangium, magnified. 



d. portion of peristome, magnified. 



2. Mnium afnne. 



a. female plant, nat. size. 



b. leaf, magnified. 



c. sporangium, magnified. 



d. male plant, nat. size. 



