﻿80 8. EOHYMENOPHYLLUM. § 2. LEPTOCIONIUM. 



Stipes 2'/i — 5 c.M. long, wiry, naked or slightly tomentose. Fronds 

 7'/2 — 20 c.M. long, 5 — I'j^ c.M. broad, oblong, acuminate, winged in the upper 

 half, hairy below. Pinnae lanceolate-oblong, acuminate, cut down to a winged 

 rachis into + 8—10 pinnulae. Highest pinnulae simple, the lower ones to 

 ^ X forked. Ultimate segments linear or oblong, + 2 m.M. broad, the edges 

 toothed. Sori 1-^6 to a pinna, occupying the anterior side of the pinnulae, 

 terminal on short lobes; indusium oblong, divided ± '/i'^ay down, the valves 

 entire. 



New Guinea, Philippines, Malacca. 



(36) H. fraternum, irarr., Journ. of Linn. Soc, Bot., XVI, 26; 

 H. Steerei, C. Chr., Ind. Fil. 



Stipes slender, + 5 c.M. long, winged. Fronds + e'/j c.M. long, + 

 5 ',2 — 4 c.M. broad, oblong, erect, 5-pinnatifid ; rachis and branches winged. 

 Pinnae ovate, + 2 c.M. long or less; ultimate divisions linear. Edges of 

 wings and segments crisped, denticulate. Sori terminal, sessile, scattered over 

 the frond; indusium the width of the ultimate divisions, cleft to the base; 

 valves elliptical, laciniate at the apex, elsewhere entire and crisped. 



Philippines. 



(37) H. Reinwardtii, r. B. JB., Hymen. Jav., 52, tab. XLII. 

 Rhizome creeping, branched, covered with long, rfeddish-brown hairs. 



Stipes 5 — 8 c.M. long, firm, broadly winged, nudate at the base. Fronds 8 — 12 

 c.M. long, 2 % — 4 c.M. broad, membranaceous, thin, lanceolate or long-acuminate, 

 5-pinnatifid. Pinnae contiguous, often erecto-patent, the higher fertile ones 

 more distant, obovate or lanceolate, cut down to a crisped wing into several, 

 slightly crisped pinnulae on each side. Pinnulae deeply pinnatifid again. 

 Lobes linear or oblong, simple or 2-fid. Margins of the lobes and wings 

 irregularly and minutely sinuato-denticulate; the apices of the lobes rounded 

 or trucate. Sori terminal on the lobes, 2 — 12 or more to a pinna; indusium 

 broad, deeply 2-valved; valves orbicular, with the edge minutely and obtusely 

 denticulate. 



Java, Sumatra. 



(38) H. physocarpum, Christ, Sebum. & Laut., Flor., deut. Sch. 

 geb., Suppl., 33, tab. I, fig. A, a — b. 



Near H. sabinifolium, Bk., but longer. Fronds lanceolate, not triangular, 

 + 12 c.M. long, + 3 c.M. broad. Pinnae short, ovate, rather distant, nu- 



