A^ A3 



Fig. 324. — Schistostega osmundacca. 

 A, sterile ; -B, fertile plant. ( x 5.) 



Fig. 326. — Hypnum purum. 

 (Nat. size.) 



*/ 



rh Fig. 327. — Ephemerum serratum. p, Pro- 



Fig. 323. — Polytrichum com- 

 mune. rh, Rhizoids ; s, 

 seta ; c, calyptra ; ap y 

 apophysis; d, operculum. 



[ (Nat. size.) 



tonema ; b, foliage - leaf ; s, sporo- 

 goniura ; c, calyptra ; rh, rliizoids. 

 (After P. W. Schimper, x 200.) 



Fig. 325. — Protonema of Schistostega 

 (X 90.) 



Fig. 328. — Andreaea petrophila. 

 ps, Pseudopodium ; Spf, 

 foot ; fc, capsule ; c, calyp- 

 tra. (xl2.) 



