120 



POT.YSTICHl'M AXGULARE. 







Base, 



Fig. 94. 



Apex. 



Fig. 95. — Cupuliforme. 



CoNGESTUM, Moore. (Fig. 94.) — Found at Barnstaple, by the 

 late Mr. Jackson. Length of frond nine to twelv-c inches. Mr. 

 Moore places this conditionally with the variety Polydactylum. 

 It is a curious variety, having the pinnules in the upper 

 half of the frond more or less diminished or depauperated 

 along the basal portion of their rachis. Pinna) sub-opposite 

 below, alternate above, truncate, having the two or three 

 apical pinnules acute, profoundly dentate, and somewhat 



