8. HYMENOPHYLLUM. § 2. LEPTOCIONIUM. 95 



crenulate or subserrulate, acute at the point; receptacle long-filiform, 

 exserted. — Java. 



far. aftine : Valves of the indusium broad, rounded, toothed ; 

 receptacle long-iiliform, exserted. — Java. 



War. euryglossnm: Valves of the indusium broad, entire; 

 receptacle long-filiform, exserted. — Borneo., Sumatra. 



.30rt) H. toiTicelliauiam, ». A. v. n., in Bull. Btz., 191S, XI, 

 14, H. polyanthos., Christ (not Sw.), in Schum. & Laut., Flor. deut. 

 Sch.geb., Suppl., 35. 



Rhizome slender, subfiliform, clothed with more or less deciduous, 

 adpressed, pale-ferrugineous hairs. Stipes scattered, slender, 3 — 6 cm. 

 long, narrowly marginate or winged, more or less deciduously hairy with 

 long, ferruginoous hairs, as are the rachises beneath. Fronds linear- 

 lanceolate or triangular-ovate, ± T'/i — 15 cm. long, + 5 — 1\ cm. broad, 

 acuminate, 3— 4-pinnate at a base, the rachises winged, the wings entire. 

 Pinnae 10 — 20 pair, approximate, erecto-patent, or the lower spreading 

 or horizontal, the higher short, tooth-like and simple or sparingly divided, 

 the lower to + 4'/j cm. long, to I'/j cm. broad, copiously pinnate; 

 pinnulae cut down into few to several simple or 2 — 3-fid, blunt, acutely 

 serrate segments + '/^ — '/^ mm. broad. Sori moderately large, solitary 

 and axillary on the higher pinnae; indusium cuneate-oblong, 2-valved 

 '/j-way down, the base obconical, sparingly and longitudinally crested on 

 the outer side, the valves oblong, rounded, entire or nearly so; receptacle 

 long-filiform, exserted. 



New Guinea. 



(306) See No. 35. 



(30c?) H. rubellum, Ust., in Nov. Guin., VIII, Bot., 716. 



Rhizome slender, wiry, sparingly hairy, the hairs pale-ferrugineous, 

 subadpressed. Stipes scattered, slender, wiry, black-brown, + 4 — 6 cm. 

 long, naked. Fronds deltoid, ± 10—12 cm. long, 8 — 10 cm. broad, 

 3 — 4-pinnate at the base, long-acuminate, the rachises more or less 

 narrowly winged, sparingly ferrugineo-pilose, the wings entire. Pinnae 

 + 15 pair, approximate, alternate, the highest simple, shortly and 

 narrowly hnear, the lowest compound, lanceolate-ovate or lanceolate, to 

 5 cm. long and 2 cm. broad. Lower pinnulae largest. Ultimate segments 



