POLYPODIACE2B. 



Compared with a specimen so labelled in the Tokyo herbarium, 

 fern seems to vary a very wide range. 



Polypodiaceae. 

 Cystopteris BERNHABD. 

 Cystopteris for- 

 mosana HAYATA sp. nov, 

 (Fig. 83). Rhizoma repens 

 4 mm. crassum radices dense > *^JKSw*' 



"^WaSSI 



emittens. Stipes tenuissi- tfiftKp^ 



mus 30 cm. longus inferiore 



143 



This 



Fig. 83, Cystopteris formosana HATATA; a, the plant b, a hair on the surface of 

 the frond; c, a pinnule; d and e, indusia. 



