250 



POLYPODIACE,!:. 



Hab. Hieranzan, prope Kusnkusu, leg. B. Hayata et S. Sasaki, Juni., 1912. 

 Polypodium morrisonense Hwata Mater. FI. Formos. p. 447. 

 Near Pleopeltis Jiefimonitidea lsLoasE.=Polijpodiwn hemionitideum W.\LL., 

 but differs from it by the thin membrauaceous textiu-e. 



Polypodium pellucidifolium Hayata sp. uov. (Fig. 174). Rbizoma 

 repens teres squamis pateutibus dense obtectimi 3—4 mm. in diametro, squamis 



OTato-lanceolatis peltatis apice cuspidatis 

 basi rotuudatis castaneis. Stipes 10-9 cm. 

 longus glaber iutus (supra) profuude siilcatus. 

 Frons linearis 35 cm. louga 22 mm. lata apice 

 acuta basi acnta vel cuueato-acuta margine 

 iutegi'a vel crispato-undulata plas minus ten- 

 luter desuper recm'va vel plaua supra nitida, 

 costa supra profunde sulcata subtus promi- 

 uente elevata, venis lateralibus subrectis a 

 costa angulo 65° egressis supra nigro-coloratis 

 leviter flexuosis valde distiuctis subtas tenui- 

 ter elevatis prope marginem evanescentibas, 

 reticiilis venularum supra visis ; textura 

 teniuter coriacea peUucida. Sori uniseriatim 

 a infra medium usque ad apicem frondis 

 dispositi, iuter venas laterales solitarii. 



T3ab. Ai-isau, leg. B. Hayata et S. 

 Sasaki, Jau., 1912. 



Near P. Englcri, but diflei-s from it by 

 the shiuiug semi-trausparent larger frouds 

 with distinct veius. ' 



Polypodium obtusifrons Hayata n. 

 sp. (Fig. 175 ). Ehizoma repens teres 2 mm. 

 crassum squamis dense obtectum, squamis 



Fig. 174, Polypodium peUucidi- 



folium Hayata ; a, the plant ; b, a castaueis cuspidato-rotiuidatis 2 mm. longis 



scaleontherhizome; c. a portion ^ jj^n, J^tis apice obtuse lateque CUSpidatis 

 of the frond ; d, margin of the 



same. basi diLxtatis rotundatis profuude cordatis. 



