POLYPODIACKE. 



143 



Comparetl ^vitli a specimen so labelled in the Tokyo herbarium. This 

 fern seems to vary a very wide range. 



Polypodiaeeae. 

 Cystopteris Bebnhabd. 

 Cystopteris for- 

 mosana Hayata sp. nov, 

 (Fig. 83). Rhizoma repens 

 4 mm. crassmu radices deuse 

 emittens. Stijies tennissi- 

 mns 30 cm. longus iuferiore 



Fig. 83, Oystopteris formosana Hatata ; a, the plant b, a hair on the surfaoe of 

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



