406 STARCHES, GLANDS, &c. 



FIG. 225. Lycopodiura. A, portion of Lycopodium clavatum, natural size : 

 a, foliage leaf ; b, sporophyll with sporangium, magnified ; c, d, e, spores, 

 highly magnified. B, Prothallium of an allied species. (Luerssen.) 



