250 



POLYPODIACEL*:. 



HAD. Hieranzan, prope Kusukusu, leg. B. HAYATA et S. SASAKI, Juni., 1912. 



Polypodimn morrisonense HAYATA Mater. Fl. Formos. p. 447. 



Near PleopeUis hemionitidea MOORE. Pdypodvam hemionitideum WALL., 

 but differs from it by the thin membranaceous texture. 



Polypodium pellucidifolium HAYATA sp. nov. (Fig. 174). Rhizoma 

 repens teres squamis patentibus dense obtectum 3-4 mm. in diametro, squamis 



ovato-lanceolatis peltatis apice cuspidatis 

 basi rotundatis castaneis. Stipes 10-9 cm. 

 longus glaber intus (supra) profunde sulcatus. 

 Frons linearis 35 cm. longa 22 mm. lata apice 

 acuta basi acuta vel cuneato-acuta margine 

 Integra vel crispato-undulata plus minus ten- 

 uiter desuper recurva vel plana supra nitida, 

 costa supra profunde sulcata subtus promi- 

 uente elevata, venis lateralibus subrectis a 

 costa angulo 65 egressis supra nigro-coloratis 

 leviter flexuosis valde distinctis subtus tenui- 

 ter elevatis prope marginem evanescentibus, 

 reticulis venularum supra visis ; textura 

 tenuiter coriacea pellucida. Sori uniseriatim 

 a infra medium usque ad apicem froudis 

 dispositi, inter venas laterales solitarii. 



HAD. Arisan, leg. B. HAYATA et S. 

 SASAKI, Jan., 1912. 



Near P. Engleri, but differs from it by 

 the shining semi-transparent larger fronds 

 with distinct veins. 



Polypodium obtusifrons HAYATA n. 

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



crassum squamis dense obtectum. squamis 

 Fig. 174, Polypodwm pelluctdi- 



foilum H AY ATA ; a, the plant ; b, a castaneis cuspidato-rotundatis 2 mm. longis 



scale on the rhizome; c, a portion 1 ^ ^^ ^ Q})iag& j. ue cuspidatis 

 of the frond; d, margin of the 



same basi dilatatis rotundatis profunde cordatis, 



