﻿S54 69. VITTARIA. § 1. EDVITTARIA. 



c. Fronds generally ^/^ — 3 m.M. broad. 



'^. Costa distinct, fronds under i m.M. broad. (1) V. caudiformis. 

 •{•.•{'. Costa indistinct, fronds more than i m.M. broad, 



*. Fronds small, to i2 c.M. long, i — V\^ m.M. broad. 



(2) V. lloydiifolia. 

 ^.^. Fronds longer, 15 — 25 c.M. long, d^j^ — 3 m.M. broad. 



(3) V. angustifolia. 

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



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



(4) V. crassifolia. 

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

 frond. 



€. Rhizome scales grey. (5) V. rigida. 



e.e. Rhizome scales blackish. 



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



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



h.h. 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, 

 >(c.;^:. Barren fronds crenulato-undulate. Rhizome sparingly setose. 



(8c) V. crispomarginata. 

 UM. Fronds mostly 2 — 4-fid, the segments simple or forked again. 



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



•J'.f . Fronds long, stalked. (96) V. Merrillii. 



* (1) "V. caudiformis, bl, Enum., 200. 



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

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

 coriaceous; costa visible. Sori marginal. 



Java. 



* (2) \. lloydiifolia. Rue, 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—1 V2 ^•^'^- broad, acute, narrowed 



