346 POLYPODIACE.E. 



Frons fertilis : quam ea sterilis minor conformis vel angustior pinnis lougissime 

 linearibus cliartaceis ; segmenta pinnarum vel fronduin margine toto longitudine 

 sorifera. Inclusium marginale tenuissime membranaceum Inim. latuni. 



HAD. Mt. Arisan, Taroyen, leg. TAKEO 1x5, Aprili. 1914. 



Vittaria SM. 



Vittaria sp. No. I. (Fig. 149-a). Epiphytica ad truncos arboris crescens. 

 Khizonia dense squamatum dense frondigerum, squamis castaneo-fuscentibus 

 4-6 mm. lougis basi ^ mm. latis linearibus basi latissimis \ mm. latis apice 

 subulato-acnminatis margine remote setulosis. Stipes supra subnullus subtus 

 complanatus basi squamatus. Frons longissime linearis usque ad 30cm. longa 

 usque ad 3 mm. lata apice acuminatissima basi gradatim attenuata giabra mar- 

 gine Integra margine baud vel vix recurva giabra. Textura chartaceo-coriacea, 



o o o o 



costa supra vix vel distincte elevata subtus plana baud elevata vel plus minus 

 impressa. Sori ad sulcos marginales siti. 



HAB. Shinko : Mai, leg. U. MORI, Juli. 1906 (No. 1322). 



Very near V. elongata Sw.; but differs from it by the much smaller fronds 

 with elevated costa?. Color and cellular structure of the scales are also different. 



Vittaria arisanens HAYATA (Fig. 149-b, c) Ic. PL Fornios. IV. p. 243, 

 fig. 169. Descriptio auctata : Squama? apicis rliizomatis lineari-lanceolata? 5- 

 8 mm. longa? ^-1 mm. lata? apice acuminatissima? basi baud contracts? baud 

 nigricantes teiiuissima? fusco-castanea?. 



Vittaria sp. No. II. (Fig. 149-d, e, f). Epiphytica ad truncos arboris 

 crescens. Rhizoma dense squamatum et dense frondigerum, squamis fuscentibus 

 lineari-lauceolatis cuni iis Vittarim suberectce conforniibus paullo majoribus. 

 Stipes basi dense squamato excepto glaber brevis subtetragonus. Frons longe 

 linearis 35cm. longa 6 mm. lata apice acuminatissima basi gradatim attenuata 

 ad stipitem brevem abeuns giabra. Textura tenuiter coriacea. Sori iutramar- 

 ginales, marginibus valde deorsum curvatis. 



HAB. inter Urai ct Eaga, leg. K. MIYAKE, Oct. 1899. 



Near Vittaria suberecta HAYATA, but distinguishable from it by the thinner 

 fronds with much more recurved margins. 



Vittaria mediosora HAYATA sp. nov. (Fig. 149-g, h, i). Epiphytica. Rhi- 

 zoma dense squamatum dense frondigerum ; squamis caducissimis fuscentibus 



