162 



772^^ BOOK OF CHOICE FERNS. 



tlie largest, are deltoid (in shape of the Greek delta, A), long-stalked, and 

 divided into short-stalked pinnules (leafits) of the same shape, but cuneate 

 (wedge-shaped) at their base ; their segments, somewhat spear-shaped, are cut 



fig. 38. Barren Frond of Deparia Moorei 



(I nat. size). 



down to a narrow wing into oblique -oblong, blunt lobes Jin. long and of 

 moderately firm texture. The very small sori (spore masses) are disposed one 



