XIII 



LYCOPODINE^ 



501 



Fig. 290. — A, Plant of Phylloglossum Drummondn, X about 3 (after Bertrand). sp. 

 Sporangia; R, roots; T^, protocorm; T^, secondary protocorm; B, longitudinal sec- 

 tion of the young strobilus of the same, showing the initial cell (0, young leaves 

 (/', /"), and young sporangium (^/j), X240; C-E, young sporangia of Lycopodium 

 selago, radial sections, X22S; F, tangential section of the same; G, radial section 

 of young sporangium of L. clavatum (Figs. B-G after Bower). 



