412 72. CYCLOPHORUS. § 1. NIPHOBOLUS. 



(4) C varius, Gaud.} — var. flabelliformis, v. A. v. R., in Bull. 

 Btz., 1914, XVI, 57. 



War. flabelliformis: Fronds very heteromorphous. Barren 

 fronds of the young plants lanceolate, entire, on stipes to 3 cm. long. Barren 

 fronds of the older plants intermediate in shape between those of the young 

 plants and the fertile fronds. Fertile fronds entire and sterile in the 

 lower part, copiously dichotomous and fertile in the upper part, the 

 branched portion semiorbicular in outline, 7 —8 cm. long, 12— 14 cm. broad, 

 the segments very conspicuously flabellate-divaricating and imbricating; 

 ultimate lacinulae numerous (60 — 80), tooth-like or subulate. — Sumatra. 



(8) C acrostichoides, Pr.} — var. Backeri, v. A. v. R., in 



Bull. Btz., 1912, ■VII, 10. 



Forma typica: Fronds coriaceous, thick when dry; veins hidden. 



Forma carnosa : Fronds fleshy, rather thin when dry ; veins visible. — 

 Sumatra. 



War. Backeri: Fronds subpendulous, thick, repeatedly irregularly 

 dichotomous with many (20- -40) ultimate laciniae. — Java. 



(11a) C valloculosiis, ». A. ». n., in Bull. Btz., 1912, VII, 10. 



Rhizome creeping, moderately slender, woody, pale-brown, clothed 

 with crowded, adpressed, peltate, entire or lacerate, roundish or oblong 

 scales dark at the centre, paler at the edge. Stipes scattered, + 7'/2 — 15 

 cm. long, at length naked, scaly at the base, the scales similar to those 

 of the rhizome. Fronds linear, + 60 — 120 cm. long, + 2'/j — S'/j cm. 

 broad, entire, narrowed gradually towards both ends. Texture moderately 

 thin, flaccido-coriaceous, pellucid when seen towards the light; upper 

 surface at length naked, lower clothed with crowded, adpressed, short- 

 branched, pale stellate hairs ; costa prominent beneath ; veins distinct when 

 seen towards the light, somewhat prominent above, the main ones slender. 

 Sori roundish, numerous, occupying the upper portion of the frond, rather 

 crowded, crateriform, not immersed in the tomentum, immersed in the 

 substance of the frond, the cavities arranged in grooves, forming obliquely 

 longitudinal (convergent), rather closely placed, prominent, straight ridges 

 or rows of roundish bubbles on the upper surface of the frond. 



Java, Celebes (?). 



mam 



