158 POLYPODIACEJE. 



HAB. Inter Ushoko et Arisan, ad 7000 ped. alt., leg. B. HAYATA, 

 Aprili. 1916. 



Near Bleclmum melanopum (HooK. Sp. Fil. III. p. 64 t. CLXI.) ; but 

 slightly different from it in having less anastomosing veins. In appearance, 

 the present species is very like sterile fronds of Plagiogyria falcata which 

 grow on rocks with the new fern. 



CyclopJiorus DESV. 



CyclophoruS Sasakii HAY ATA sp. nov. (Fig. 61). Rhizoma repens 



teres' gracile primnm versus apicem densissiuic squamatum, (squamis castaneis 



lineari-lanceolatis 5 6 mm. longis ^-mm. latis 

 apice acuminatissimis basi rotundatis peltatim 

 insertis, basi ad extreuiitatem pauce fimbriatis 

 vel hand fimbriatis), demum subglabratum 1 

 Fig. 61, Cross section of a frond mm - In diametro sectionis remote frondigerum. 

 of CydopJwius Sasakii HATATA. Frons a se circ. 1 cm. distans subsessilis vel 



brevissime tipitata lineari-lanccolata 3 cm. longa 3 mm. lata apice obtnsa basi 

 ad stipitem abeuns margine integerrima valde deorsum usque ad costain 

 convoluto-recurva supra medio impresso-sulcata, supra glabra subtns stellato- 

 pilosa. Textura crassissirna. Sori ignoti. 



HAB. Shintiku : Karizenzan, leg. S. SASAKI, Jan. 1916. 

 Very near Polypodium angustissimum BAKER. Undoubtedly our plant 

 belongs to the same section with that species. 



Dryopters ADANS. 

 Dryopteris Sasakii HAYATA n. n. 



Dryopteris tenuifrons HAYATA Ic. PI. Fornios. IV. p. 184 (non C. CH.). 

 Dryopteris WOOdsiisora HAYATA sp. nov. Rhizoma ascendens crassum 

 dense squamatum. Stipes 45 cm. longus dense squamatus, squamis stramineis 

 lineari-lanceolatis circ. 1 cm. longis l-l mm. latis apice acuminatissimis 

 margine aristis brevissimis minutis remote instructis. Frons in ambitu 

 ovato-lanceolata apice acuminata basi obtusa vel truncata 9 cm. longa 3-4 cm. 

 lata pinnata, pimiis divaricatis a rhachi frondis angulo 90 egressis, superiori- 

 bus gradatirn minoribus, pinnis infra medium sitis longissimis lineari-triangu- 

 laribus 18 mm. longis 8 mm. latis apice obtusissimis basi truncatis brevissime 



