ISS4 69. VITTARU. § 1. EUVITrARIA. 



c. Fronds generally */» — 3 mJf. broad. 



•i>. Costa distinct, fronds undar i m.M. broad. (1) V. caudiformis. 

 •{>.•{•. Costa indistinct, fronds more than i mJK. broad. 



*. Fronds small, to i2 c.M. long, i — f '/, m.M. broad. 



(2) V. lloydiifolia. 

 i^.it^. Fronds longer, i5 — 55 c.M. Ipng, f*/, — 3 m.M. broad. 



(5) V. angustifolia. 

 C.C. Fronds mostly 3 — iO m.M. broad. 



d. Sort confined to the upper part of the frond. 



(4) y. crassifolia. 

 d.d. Sori long, continuous, not confined to the upper part of the 

 frond. 



e. Rhizome scales grey. (8) V. rigida. 



e.e. Rhizome scales not grey. 



f. Frmds erect. (6) V. ensiformis. 



f.f. Fronds pendulous. (7) V. elongata. 



b.b. Fronds distinctly stalked, more than i c.M. broad in most of the spe- 

 cimens. 

 ;|<. Barren fronds entire. 



X. Rhizome scaly. (8a) V. zosterifolia. 



x.x. Rhizome naked, + setose at the apex. (86) V. pachystemma. 

 3(c.5|c. Barren fronds crenulato-undulate. Rhizome sparingly setose. 



(8c) Y. crispomarginata. 

 A.a. Fronds mostly Z — 4-/?rf, the segments simple or forked again. 



f . Fronds rather small, sessile or subsessile. (9o) V. Bensei. 



f.f. Fronds long, stalked. (96) V. Merrillii. 



• (1) T. caudiformis, si., Enum., 200. 



Rhizome creeping, scaly, the scales hair-pointed. Fronds linear-filiform, 

 under 1 m.M. broad, la.x, pendulous, elongate, acuminate, revolute. Texture 

 coriaceous; costa visible. Sori marginal. 



Java. 



* (2) \. lloydiifolia, Jtac, Flor., Btz., I, 59. 



Rhizome short-creeping, the scales dense, short, thin, subentire, brown, 

 narrowed gradually from the base to the fine, acute point. Fronds linear, 

 1 — 10 m.M. apart, 3 — 12 c.M. long, 1 — I'/j m-M. broad, acute, narrowed 



