Tab. CCLXIX. 



Nephrodium (Lastrea) tenericaule. Hook. — p. 142. 

 Base of a stipes, and portions of a fertile frond ; nat. 



Fig. 1. Fertile pinnule ; magnified. Fig. 2. Portion of a 

 fertile pinna, with a sorus (the involucre obsolete) ; more 

 magnified. 



size. 



