Tab. CXX. 



A. Pteris (Eupteris) Chilensis, Desv. — p. 1/5. 



Fig. 1. Small portion of a fertile frond; nat. size. Fig. 2. Seg- 

 ments of a pinna, with sori, seen from beneath ; and Fig. 3. 

 Portion of sorus ; magnified. 



B. Pteris (Eupteris) tremula, Br. — p. 174. 



Fig. 1. Small portion of a fertile frond ; nat. size. Fig. 2. Por- 

 tion of a segment, with sori, seen from beneath ; magnified. 



