POLYPODIACE^;. 



143 



Compared with a specimen so labelled in the Tokyo herbarium. This 

 fern seems to vary a very wide range. 



Polypodiaeeae. 

 Cystopteris BERNHARD. 

 Cystopteris for- 



mosana HAYATA sp. uov. 

 (Fig. 83). Rhizoma repens 

 4 mm. crassum radices dense 

 emittens. Stipes tenuissi- 

 mus 30 cm. longus inferiore 



# 



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

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



