276 POLYPODIACE^. 



apice obtusis basi phis minixs dilatatis ad costam pinnarimi adnatis margine 

 angiistissime cartilagineo-marginatis ciliolis aristiformibas instructis in exsiccato 

 margiue deorsum recurvis ; pinna tenninalis 13 cm. longa caudiforme producta 

 2 J cm. lata cum pinnis lateralibiis mediis subconformis sed brevior et latior ; 

 segmentis lateralibus pinnarum haud ajjproximatis, sinibus inter segmenta cum 

 segmentis ipse subaec^uilatis vel minus latis ; pinnis inferioribus a rliacliibus 

 frondium deorsum siu'sum falcato-divaricatis, inferioribus deoi-sum vald --'-for- 

 miter sursum -^-formiter recm-vis, superioribus subrectis ; segmentis piunarum 

 deorsum subrectis sursum w-formiter recurvis ; pinnis suboppositis, jugis in- 

 ferioribus a se 3|cm.-4cm. remotis. Ebachis frondis medio 4mm. hxta glabra 

 subnitida in exsiccato straminea supra late canaliculata dorso complanato-tereto- 

 subtetragona utroque latere tenuiter sulcata dorso subplana vel leviter convexa, 

 costa pinnarum supra distincte elevata subtus prominente elevata supra plana 

 tenuiter sulcata hirsuta fuscens subtus glabra convexa straminea ; costis veuis 

 segmentorum piinnarum supra impi-essis subtus elevatis, venis simplicibus rarius 

 furcatis rectis ad marginem attingentibus a costa angulo 50° egressis sub luce 

 transversa distincte visis ; pagina utraque glabi-a ad marginem aristato-ciliolata 

 supra in vivo et exsiccato viridissima subtus paullo pallida ; textura chartacea 

 vel tenuiter coriacea. Frons subtus a basi per totam longitudinem (partibus 

 superioribus frondis pinnarum segmentorum exccptis) sorifera. Sori utroque 

 latere costaj segmentorum ai^proximatim 1-seriatim lirme projie costam siti 

 a margine valde distantes globosi haud involucrati. ludasium nuUmn. Pili 

 frondis imicellulares. 



Hab. Mt. Arisau : Jujiro ad 6000 ped. alt., leg. B. Hayata et Takeo Ito, 

 Mart. 1914. 



Bakeii's description is as follows : — " Stijies 2 ft. or more long ; tetrago- 

 noiK, glossy, stramineous, naked ; fronds 3^ft. long, 1-2 ft. broad; lower jnnnaa 

 sometimes 1 ft. long, li in. broad, cut down nearty to the rhachis into close 

 acute or bhmtish entire lobes 2liu. broad ; textm"e rigid, subcoriaceous ; rhachis 

 on both sides naked ; veinlets simjile, often 20 on a side ; the sori close to 

 the raised midrib." The descriiation here quoted agrees very well with our 

 l>lant, exccpt the ciliolate margins Tvhich however are mentioned in Beed. Fern. 

 Brit. lud. t. 213. 



