POLYPODIACE2E. 231 



K>OA-B). Rhizoma re pens teres teiiuissimura 1-.} mm. in diametro squamatum. 



Stipes usque 9 cm. longus nitidus fusco-purpurascens 1 mm. in diametro section is 



gracillimus glaber basi squamatus. Frons lanceolata 



apice acuminatissima (acumiue linear!) a medio usque ad 



basi sequilata basi subtruncata usque ad 17 cm. louga 



usque ad 2| cm. lata pinuata, pinuis mediis inferioribus 



subsequilongis, superioribus minoribns versus apicem ad 



dentem brevem abeuntibus, piunis mferioribus a se 8 Fig ' 16O ~ B 1( - 



a portion of the frond. 



mm. remotis augulo 50 a rhachibus frondium divari- 



catis oblique rectangularibus 1-i cm. lougis 4mm. latis versus apicem obtuso- 

 arutis ad summum obtusts ascendentibus basi acuto-ctmeatis subsessilibus 

 vel brovissime petiolatis valde insequilateralibus, latere superiore basi 6 mm. 

 lato, latere inferiore subiiullo, margine suj)eriore obscure creuatis margiue 

 inferiore subintegris ; pagina utraque glabra tenuissime membranacea semihya- 

 lina. Sort a medio frondis sursum dispositi. 



HAB. Arisau, ad 7000 ped. alt., leg. B. HAY ATA et S. SASAKF, ,T,-iu., 1912. 



This fern is of a form so striking!}' different from ordinary one of the 

 type. But, the transition from this extreme form to the ordinary one has 

 led me to regard the former as a variety of the latter, or moro likely as a 

 mere form of the same species. 



Asplenium viridissimum HAYATA sp. nov. (Fig. ifil). Rhizoma? 

 Stipes 40cm.longus basi parce squamatus purpureo-viridescans superue glabratus 

 subviridescens, squamis augusto-liuearibus 13 mm. lougis 14 mm. latis vel 

 valde minoribus et piliformibus. Frons lanceolata 70cm. longa 35cm. 

 lata apice acuta vel acuminata basi in ambit a rotimdata tripinuati- 

 fida, pinnis inferioribus longissimis, infimis plus minus brevioribus, superi- 

 oribus gradatim miuoribas, pinnis longissimis pyramidali-lanceolatis 20cm. 

 longis 8 cm. latis obliquis (latere suporiore latiore basi 6 cm. lato, latere 

 inferiore minus lato 4 cm. lato) basi 10 cm. latis apice acuminatis (acumini- 

 bus pinnarurn linearibus deutatis), pinnis iufimis 5i cm. longis 3 cm. latis 

 apice obtuso-acutis pinuatis vel pinnatifidis pyramidalibus Ijasi latis- 

 simis petiolulatis (petiolulis 3 mm. lougis), pinnulis ordinis ]>rimarii 

 utroque Litere piniiM) inferioris 0-7, infimis ovatis 18 mm. longis 10 mm. 



