306 POLYPODIACE.E. 



venis venulis utraque pagine tenuiter elevatis, venis lateralibus prirnariis mediis 

 a se 2|mm. remotis a costa angiilo 45 egressis ad basin venulis singulis utro- 

 que latere emittentibus ad medium 1-plo vel 2-plo furcatim ramosis, venulis 

 totis liberis subrectis vel deorsum vel sursum recurvis ad apicem serrarum 

 secundariarum attingentibus ; pagina supra in exsiccato fusco-viridescens subtus 

 pallidior ; pinnis inferioribus gradatim minoribus in pinna infima usque ad 



4 cm. reductis, superioribus gradatim minoribus ad pinnas superriinas usque ad 



5 mm. longas reductis, pinnis inferioribus suboppositis medio superioribus alter- 

 nis; pinnis inferioribus a se utroque latere 3cm. remotis, superioribus gradatim 

 approximatis ; pinnis a rhachide frondis angulo circ. 90-80 egressis subrectis 

 sed plus minus basi deorsum apice sursum recurvis. Frons ad apicem interdum 

 prolifera ibique radicans ; rhachis frondis minute remoteque squamata supra 

 dorso cornplanata canaliculata per medium canaliculorum tenuissime 1-costata, 

 costis tenuissimis. Fr. fertilis: Stipes quam is frondis sterilis longior 30-35 cm. 

 longus. Frons in ambitu linearis 20-25 cm. longa 3-3| cm. lata apice grada- 

 tim attenuata obtusa basi abrupte truncata, pinnis medio deorsum cequilongis 

 breve petiolatis (petiolis 1-2 mm. longis) linearibus 13mm. longis 3J-4mm. latis 

 apice rotundato-obtusis ab apice usque ad basin sequilatis basi subcordatis 

 pagine coriaceis supra glabris in exsiccato fulvo-rubescentibus subtus totis sori- 

 feris margine serrulatis deorsum recurvis, costa supra minus subtus plus elevata ; 

 pinnis medio superioribus gradatim minoribus versus apicem ad pinnam ob- 

 longo-rotundatam 5 mm. longam reductis. 



HAB : Akocho : Tanashu, leg. G. NAKAHARA, Jan. 1905. 



Near P. appendiculata J. SM., but separable from it by the much thinner 

 fertile pinnse, and duplicately serrate sterile pinnae with very short bristles at the 

 sinus. 



Polybotrya marginata BLUME Fl. Jav. Fil. p. 18, t. 3. Khizoma repens 

 dense frondigerum. Fr. sterilis : stipes 10-20 cm. longus sparse squamatus, 

 squamis lanceolatis acuminatis 2 mm. longis ; frons lineari-lanceolata stipitem 

 f-plo in longitudine sequans 15-25 cm. longa 3-5 cm. lata apice acuminato- 

 pro-longata, (acumine lineari 3^ cm. longo 3-5 mm. lato recto margine dentato 

 interdum basi prolifero) pinnata, pinnis (infimis superioribus exceptis) omnibus 

 requilongis, mediis 3cm. longis 6 mm. latis linearibus margine parallelis apice 



