Fig. 249. — A, Plant oi Pliylloglossiiin Drttimnondii (V,.\ix\zft), X about 3 (after Bertrand). sp. Spor- 

 angia ; R, roots ; Tl, protocorm ; T^, secondary protocorm ; B, longitudinal section of the young 

 strobilus of the same, showing the initial cell (/), young leaves (/', /"), antl young sporangium (jr/), 

 X240; C-E, young sporangia of Aj/co/t^i/^KW .ff/rt^o, radial sections, X225; F, tangential section 

 of the same ; G, radial section of young sporangium of L. clavatum (Figs. B-G after Bower). 



