^^ 69. TITTABU. § 2. TABNIOPStS. 



+.+. Fronds pendulous, to 70 c.M. long, +■ t — i'/i w*-^- bfood. 



(12) V. longicoma. 

 3^. Fronds 2 — 4 m.M. broad, the apex blunt or rounded. 

 A. Rhizome scales dark-brown; midrib keeled above. 



(13) V. pumila. 

 4.4. Rhizome scales pale-brown; midrib slightly mlcate above. 

 S. Veins simple. (14) V. debilis. 



S.S. Veins forked. 



S. The outer lip of the groove rather thin at the 

 edge. (15) V. pusilla. 



«.«. The outer lip- of the groove thick at the edge. 



(16) V. sulcata. 

 S.9i Fronds mostly 4 — 10 m.M. broad. 



•{>. Fronds iO — iS c.M. long, submembranaceous. 



(17) V. amboinensis. 

 f.i. Frmids i5—d20 c.M. long. 



X. Coriaceous. (18«) V. lineata. 



x.x. Camoso-herbaceous. (186) V. taeniophylla. 



X.1S.9. Fronds i — c.M. broad in most of the specimens. 



•}•. Costa stout, especially towards the base. Fronds under 50 c.M- 



long. (19) V. scolopendrina. 



•i:-ir. Costa slender, inconspicuous. Fronds 50 — 60 c.M. long when 



fully developed. (20) V. philippinensis. 



(lOo) V. hirta, rie, M6m., X, 12, tab. XXXI, fig, 4. 

 Fronds linear, nearly filiform, bluntish, clothed with long, stiff, whitish, 

 spreading hairs. Sori extra-marginal; sporangia roundish. 

 Borneo. 



(106) 1^. snbcoriacea, ChrUt, Philipp. Journ., II, i7g. 



Rhizome (probably) short-creeping, clothed like the base of the fronds 

 with slender, black-brown, setiform scales. Fronds tufted, linear, ± 55 c.M. 

 long, ± 8 m.M. broad, narrowed gradually into a stipe 5 — 5 c.M. long, the 

 apex broadly subacute, the edge broadly reflexed, adpressed.. Texture succu- 

 lentv brittle; colour black-castaneous in the lower part of the frond, ochraceous- 

 green above; surfaces minutely rugulose and puberulous; costa strong below. 



