69. VITTABIA. § 2. TAENIOPSIS. 339 



rarely black in the lower part, sometimes nearly lost upwards ; veins fine, 

 ■oblique, parallel. Sori in broad, continuous, submarginal grooves, with 

 the unaltered margin of the frond at first revolute over the fructification. 



Forma typica: Fronds + 30 — 45 cm. long and + 1 — 3 cm. broad. — 

 Samoa to Ceylon, Br. India, South Africa. 



Forma pallidior: Fronds 25 — 130 cm. long and ± 2 — 6 cm. broad 

 in the fully developed plants. — Borneo, Sumatra. 



(20rt.) W, €o|ielaiidii, ic. A. v. R., in Bull. Btz., 1912, VII, 28; 

 V. Merrillii, Goj^iel. (not Christ), p. p., in Leafl., II, 407. 



Rhizome creeping, not caespitose, clothed with long, spreading, 

 capillary-subulate, black-brown scales. Stipes distant, pendulous, slender, 

 grey-brown, + 12 — 15 cm. long. Fronds 60 cm. or more long, % — I'/j 

 cm. broad, linear, narrowed gradually into the stipe, the margin thickened. 

 Texture firm when dry; surfaces opaque; costa visible. Sori long, sub- 

 marginal, dorsal, occupying the thickened edge, with the lips of the soral 

 groove narrow, thick. 



Negros. 



6©«. SCJL,EROGrL,OSSXJ]>l, ». A. v. R. 



Sori long, linear, deeply immersed in submarginal or intramarginal 

 grooves, i. e. protected (separated) by the much produced (thickened and 

 widened) costal parenchyma which is sometimes as broad as the lamina. 

 N& paraphyses. 



Rhizome short or elongated, creeping or ascending. Fronds linear, 

 narrow, simple, rarely forked, rigidly coriaceous, thick, much thickened 

 in the fertile region, sometimes as thick as broad; veins free, ascending, 

 simple or forked, indistinct or invisible. — v. A. v. R., in Bull. Dep. 

 Agr. I. N., 1908, XXI, tab. II, fig. 2—3 (Vittaria, p.p.). 



Stipes short or icanting. 



b. Lateral veins si^nple. (1) Sc. debile. 



h.b. Lateral veins forked. 



