219 



leiopodum denti- 

 culate, while in 

 7). tenuicaule 

 they are nearly 

 entire. 



Diplazium 

 subrigescens 



HAYATA sp. nov. 

 (Fig. 149). ^4%- 

 rivm subrigescens 

 HAYATA in herb. 

 Taihoku. Ehi- 

 zoma ascen- 

 dento - erectnm. 

 Stipes usque ad 

 26 cm. longus 

 albo - stramineus 

 basi nigrescens 

 basi plus minus 

 lanceolato-dilata- 

 tus basi dense 

 superiore parce 

 squamatus sur- 

 sum 



Fig. 149, Diplazium subriyescens HAYATA; a, the plant; b, a scale 

 of the rhizome ; c, a pinnule ; d, an indusium of the Athyrium-type ; 

 e, another indusium of the Diplazium-type. 



glabratus, 



squamis inferioribus cuspidato-lanceolatis acuminatis basi cordato-rotundatis vel 

 rotundatis margine integris usque 1 cm. longis usque 2 rnm. latis nigrescentibus. 

 Frons cuspidato-ovata usque 25 cm. longa usque 20 cm. lata apice longe caudata 

 a medio usque ad basin sequilata sursum subito ad caudam abeuns bipinnata, 

 pinnis mediis vel basilaribus subsequalibus lanceolatis 10 cm. longis 2 cm. 

 latis apice acuminatis (acnmiue lineari tenuissimo 1-2 mm. lato) basi sessilibus 

 truncatis sequilateralibus, pinnulis sessilibus fere toto sequilongis, mediis 

 oblique oblongis vel semitriangularibus 1 cm. longis 5 mm. latis latere superiore 

 auriculatis latere inferiore cuneatis margine duplicato-dentatis vel sermlatis, 



