Fig. 10 



Lycopodium clavatum: A, b, c, stages in sporophyll development; 

 H, prothallus; J-o, stages in archegonial development; u-z, 

 embryology of young sporophyte. L. cermium: G, prothallus; 

 I, archegonium; q-t, embryology. L. Selago: e, surface-livmg 

 prothallus; f, subterranean prothallus; p, young sporophyte. 

 Phylloglossum Drummondii: D, complete plant 

 (f, foot; 1, leaf; r, root; s, suspensor; t, tuber; x, stem apex) 

 (e, f, j-o, u-z, after Bruchmann; g, i, q-t, Treub) 



