1'OLYrODIACEiT:. 



347 



linciui-lauccolatis aiiice suljulato-acmniuatis Lasi 

 latissimis 4-5 mm. longis basi 1 mm.-§ mm. latis 

 marginc suljintegris vel remote serrulatis. Sti^ics Lasi 

 (lense Sf[uamatiis sursum glabratus clorso complauatus 

 iii sectiouc lcntiformis '2-4 cm. longus l mm. latus. 

 Frons linearis 15-30 cm. longa 1^-2 mm. lata apice 

 oLtusa basi gradatim attenuata acl stipitem abeuns 

 marginc integi-a margine tenuiter deorsum recur\'a 

 <v»-formis in sectioue, in sectione ad marginem 

 acuta, costa supra vix impressa subtus vi.x: elevata. 

 Sori ad medium inter costas et margines siti. Tex- 

 tm'a tenuiter chartacea. Keceptaculum sororum costa 

 plus approximatim quam margine situm subtits ten- 

 uissime elevatum. 



Hab. Mt. Arisan, Tdzan ad 7800 pcd. alt., leg. 

 S. Sasaki, Mart. 1913. 



Very distinct for its very narrower fronds with 

 soriferoiLs veins on the nearly midway betweeu tho 

 costas and margins. 



Vittaria sp. No. III. (Fig. 149-j, k). Epiphytica 

 ad truncos arboris crescens svdjcrecta plus minus 

 curvato-descendens. Eliizoma cum basibas stipitum 

 dense stiuamatum, scjuamis persistentibus fusco-nigi-i- 

 cantibus liueari-hxnceoktis 2 mm. longis apice suIh 

 ulato-acuminatis margine rcmote sctulosis, denso fron- 

 digerum. iStipes atro-pm-piu-eus basi dense sq[uamatus 

 sursum glaber brevissimus subtetragonus supra sul- 

 catus. Frous longissime linearis 20-50 cm. longa 

 3^-8 mm. lata apice acuminatissima basi gradatim 

 attenuata ad stiiiitem brevissimum abeuns margine 

 integeiTima in c.xsiccato deorsum recurva utraque 

 pagine glaberrima, costa supra impressa subtus pro- 

 minente elevata ; textura crassa in exsiccato vakle 



Fig. 149; a, Vitlaria 

 sp. Ko. I. ; a portion of a 

 scale on the rliizoine ; b, T'. 

 arisanensis Hay. ; a scale 

 on the rhizome ; c, margine 

 of the same, showlng cel- 

 hilar strncture; d, Yittaria 

 sp. No. 11.; cross section 

 of the frond ; e, marginal 

 portion of the same; f, 

 central portlon of the same ; 

 g, 1"". viediosora Hay. ; h, 

 marginal portion of the 

 same ; i, cross .section of 

 the froud ; j, a scale on 

 the rhizome of Vittaria sp. 

 Ko. III. ; k, cross section 

 of the same species ; I, a 

 scale on the rhizome of 

 Vittaria sp. K"o. IV. ; m, 

 cross section of the frond 

 of the same specics. 



