LIFE HISTORY OF A FERN 



FIG. loCyrtomium falcatum. Under (dorsal) surface of a portion of 

 a sporophyll, showing the numerous sori on the pinnae. 



FIG. ii. Fern leaves, showing various degrees of subdivision or branch- 

 ing of the blade. A, Phyllitis; B, Poly podium; C, Pteris; D, Adiantitm. 



