Tab. CXXXIV, 



A. PtERIS (EUPTERIS) LONGIPINNULA, JFalL — p. 179. 



Fig. 1. Pinna of a fertile frond; nat. size. Fig. 2. Portion of 

 a fertile segment ; magnified. 



B. Pteris (Eupteris) quadrtaurita, Retz. — p. 179. 



Fig. 1. Lowest pinna of a frond (sterile), showing its bipartite 

 character; and Fig. 2. Intermediate pinna of a fertile 

 frond; nat. size. Fig. 3. Portion of a fertile segment; 

 maynified. 



