POL YPODJ AGEJE. 161 



mm. broad Y. anguste-elongata 



3. Fronds not tortuous V. elongata 



Fronds usually tortuous V. tortifrons 



4. Fronds very narrow, usually 30 cm. long 2 mm. broad ; sorus on the 



middle between margin and costa V. mediosora 



Fronds 4-8 mm. broad 40-80 cm. long, sori located near the margin . . 5 



5. Fronds pendulous, scales brownish V. arisancnsis 



Fronds suberect, scales much darker V. suberecta 



Vittaria anguste- elongata HAY ATA sp. nov.= Vittaria sp. HAYATA Ic. 

 PI. Formos. V. p. 346, fig. 149-a. Epiphytica ad truncos arboris crescens. 

 Rhizoma dense squamatum dense frondigerum, squamis castaneo-fuscentibus 46 

 mm. longis basi -| mm. latis linearibus basi latissimis J mm. latis apicc subulato- 

 acuminatis margine remote setulosis. Stipes supra subnullus subtus complanatus 

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

 3 mm. lata apice acuminatissima basi gradatim attenuata glabra margine integra 

 margine hand vel vix reeurva glabra. Textura chartaceo-coriacea, costa supra 

 vix vel distincte elevata subtus plana hand elevata vel plus minus impressa. 

 Sori ad sulcos marginales siti. 



HAB. Urai, Suisha, Ivelung, Giran, Soseikyaku. 



Near V. elongata Sw. ; but separable from it in the much smaller fronds 

 which are usually more or less tortuous, and in the scales which are brownish 

 and less dark than those of T". elongata. 



Vittaria elongata Sw. ; MATSUM. et HAYATA Enum. PI. Formos. p. 

 625. 



HAB. Ivaukaukei, Botansha, Suiteiryo, Urai, Raiidaisan. 



Vittaria suberecta HAYATA sp. nov. Vittaria sp. Xo. HI. Ic. PI. 

 Formos. V. p. 347 fig. 149 j-k. Epiphytica ad truncos arboris crescens 

 suberecta plus minus curvato-desceiidens. Rhizoma cum basibus stipitum dense 

 squamatum, squamis persistentibus fusco-nigricantibus h'neari-lanceolatis 2 mm. 

 longis apice subulato-acumiuatis margine remote setulosis, dense frondigerum. 

 Stipes atro-purpureus basi dense squamatus sursmn glaber brevissimus sub- 

 tetragonus supra sulcatus. Frons longissime linearis 20-50 cm. louga 3^-8 mm. 

 lata apice acuminatissima basi gradatim attenuata ad stipitem brevissimum 



