﻿68 8. HYMENOPHYLLUM. § 1. EUHYMENOPHYLLUM. 



naked, 10 — IS c.M. long, to S'/j c.M. broad; rachis filiform. Pinnae very 

 numerous, lanceolate, erecto-patent, the central ones the largest, usually simply 

 pinnate, rarely 2-pinnate. Ultimate divisions ohovate, obtuse, 1-nerved, emargi- 

 nate, crow^ded, ± 2 m.M. long, more or less crisped or complicate. Sori 

 small, terminal on the ultimate divisions; indusium immersed at the base, 

 the valves cuneate, VYith the outer edge rounded. 

 New Guinea. 



* (5) H. eximium, Jr»c, V. D. B., Hymen. Jav., 57, tab. XLVI; 

 H. dilalalum, Sw., Rac, Plor. Btz., I, 17, p.p.; C. Chr., Ind. Fil. 



Rhizome creeping, naked. Stipes 7 — 10 c.M. long, firm, terete, not winged. 

 Fronds + 10 — 15 c.M. long, 5 — 8 c.M. broad, ovate or deltoid-oblong; main 

 rachis narrowly winged towards the apex, terete, angular or marginate in the 

 lower part. Pinnae rather distant, ovate, acuminate to caudate, cut down to 

 a winged rachis, short-stalked. Pinnulae erecto-patent, cut down to a winged 

 rachis into linear, simple, forked or branched segments 2 — 10 m.M. long, 

 + 1 — I'/j m.M. broad. Sori small, terminal on short segments, 2 — 12 to a 

 pinna; receptacle clavate-oblong ; indusium deeply 2-valved, the valves ohovate, 

 with the outer edge minutely and obscurely eroso-denticulate. 



Java, Sumatra. 



(4) H. modestuiii, r. if. JB., Ned. Kruidk. Arch., V^ 163, 

 Rhizome creeping. Stipes terete, flexuose, 5 — 7 c:M. long. Fronds + 

 10 c.M. long, 4 — 5 c.M. broad, oblong, narrowed at the base, pinnate, the 

 apex pinnatifid. Pinnae oblong, broadly cuneate at the base, spreading or divari- 

 cating, the lowest remote, the rest contiguous, imbricate, slightly decurrent 

 on the rachis, sub-2-pinnatifid. Segments obcuneate, contiguous, erecto- 

 patent, the lower ones pinnatifid, the other ones 1 — 3-furcate; lacinulae 

 short, nearly straight, slightly undulate, emarginate at the apex. Texture 

 membranaceous; colour olivaceo-fuscous, subopaque; main rachis flexuose; veins 

 straight, slender. Sori terminal on the lacinulae; indusium oblong, conical at 

 the base, 2-valved ± ^/4-way down, the valves narrowly rounded, slightly 

 repand; receptacle cylindrical. 

 Philippines. 



* (5) H. flabellatuiii, iafc., Hk. Bk., Syn. Fil, Ql ; H.nitens,R. Br., 

 Hk. k Grev., Ic. Fil., tab. CXCVII. 



Rhizome creeping. Stipes 5 — 15 c.M. long, firm, erect. Fronds 10 — 30 



