332 roLYroDiACE.E. 



Cryptosoriks ; and secomUy, that Frosaptia, bcing iihylogenetically qnite different 

 froin Davallia, shoidd be kept quite distinct from the latter genus. 

 Polystichnm Eoth. 



Polystichnin aculeatum Sw. var. variiforme Hayata n. v. Pagina 

 froudis iu vivo suiira uitida atroviridis subtus pallida. Stipes cuui rhachibus toto 

 si|uamatus, squamis liueari-lanccolatis fusceutibus ; piunuL-B h^tiores quam ere 

 typicfe 21 mra. longte 9 mm. latoj oblique oblongaj apice triangidari-acutaj basi 

 latere snperiore plus minus ain-icidatfe margine seiTuLifc^e, pinnaj inferiores a 

 se Ccm. remotie. 



Hab. Funkiko, leg. B. Hayata et Takeo Ito, ]\Iart. 1914. 



Differs from the tj^pe by the mucn larger and broader pinuules and much 

 remoter piuna^. Ou the wliole, this variety lias a vciy different asjiect from 

 the tyiie. 



Polystichum hololepis Hayata sp. uov. Rhizoma ascendens apice 

 crespitosum froudigerum dense nigro-sq^uamatura. Stipos 20-30 cm. longus deor- 

 sum densissime nigro-squamatus sursum minute squamatus, scpiamis nigiis 

 linearibus subulatis integris. Frons ovata versus aiiicem subito angustata ad 

 acumen abrupto abeuns 30 cm. longa 28 cm. L^ta apice acuminata basi iu 

 ambitu cordata bipinnata, j^inuis iufirais extra-ordinariter longioribus 16 cm. 

 longis 7 cm. latis lanceolato-triaugularibus piunatis latere inferiore duplo lati- 

 oribiis rpiam latere superiore, pinnulis iufimis longissimis superioribus gradatim 

 Ijrevioribus, pinnulis infimis hinceolatis basi hxtissimis 5cm. longis 22 mm. latis 

 pinnatifidis, segmentis lineari-oblongis apice breve ai'istato-acutis margine sur- 

 sum aristato-seiTulatis deorsum integris; pagina utraque ghxbra subtus ad 

 costas spai^se squamata iu exsiccato pallido-viridis utraque pagine concolor, 

 pinnis inferioribas petiolulatis, superioribus et pinnulis sessilibus, j^innis in- 

 feriorilnis a se 3-4 cm. remotis a rhachi frondis angulo 45° egressis, pinnulis 

 iuferioribus a se 1 cm. remotis a rhachi pinnarum angulo S0*-90' egressis,J 

 superioribns gradatim se approximatis angulo acuto egressis ; textura tenuiterl 

 coriacea vel chartacea. Sori ijor totam paginam 2'i'ope costas vel costulas| 

 lobomm utroque latere 1-seriatim siti. 



Hab. Taihoku, leg. Takeo Ito et .S. Fujii. 



Near PoJysticlmrii varium Presi... but distiuguishabk^ from it by the much 



