﻿44. ONYCHIUM. 351 



brown. Fronds 15 — 60 c.M. long, 7 — 20 c.M. broad, ovate or lanceolate-del- 

 toid, 3-pinnate to 4-pinnatifid. Lower pinnae subdeltoid, erecto-patent. Pinnu- 

 lae and segments numerous; ultimate divisions dimorphous, the sterile ones 

 often obovate-cuneate, 3-fid at the apex, not more than 5 — 10 m.M. long and 

 Y2 — 1 m-M. broad, the fertile ones pod-like, '/a — ^^'2 c.M. long, 1 — 2 m.M. 

 broad. Texture coriaceous ; rachis and both surfaces naked. Indusium mem- 

 branaceous and like the sori long, linear or linear-oblong, of a rich golden- 

 yellow colour. 

 Trop. Asia. 



* (3) O. japouicum, K.xe., Rac, Flor. Biz., I, 164; 0. lucidum, 

 Spr., Bedd., Ferns Br.I., T, tab. XXI; Crypfogramme japonica, Pranll, Diels, in 

 Engl. & Prantl, Nat. Pfl.Fam., I*, 279 ; Trichomanes japonicum, Thb., (oldest name). 



Rhizome creeping, clothed with narrow, lanceolate scales. Stipes stout, 

 erect, naked, glossy, 10 — 30 c.M. long, stramineous or pale-brown. Fronds 

 ovate-lanceolate, 20 — 35 c.M. long, 7 — 20 c.M. broad, 5-pinnate or 4-pinnatifid. 

 Lower pinnae lanceolate-deltoid, erecto-patent Pinnulae and segments numerous, 

 the ultimate divisions uniform or nearly so, 3-Iobate, copious, the lobes mu- 

 cronate, 4—10 m.M. long, 1 — 272 m.M. broad. Texture herbaceous to sub- 

 coriaceous; rachis and both surfaces naked. Sori short, oblong; indusium 

 pale or brown, membranaceous; capsules brown or pale-brown. 



J'lva, Timor, Philippines; Japan, China, North. India. 



4=5a. FTEJaiS, X«»n^. 



Sori linear, submarginal, on a receptacle uniting the vein tips, occupying 

 both (posterior and anterior) sides of the ultimate segments, generally inter- 

 rupted at the tops of the sinuses between the ultimate lobes. Indusium of 

 the same shape, consisting of the reflexed, modified margin of the frond. 

 Spores globose to tetrahedral. 



Rhizome creeping or erect, scaly. Stipes not articulate to the rhizome, 

 traversed by a single, mostly \/- or [_J -shaped vascular strand. Fronds 

 commonly variously divided, sometimes variegated, i. e. the upper surface 

 provided with broad, whitish or pale-coloured bands running down the costae ; 

 veins free or anastomosing. Hk. Bk., Syn. Fil., tab. Ill, fig. 31, a — c; Diels, 

 in Engl. & Pranll, Nat. Pfl.Fam. P, fig. 154. 



