﻿90 9. TRICHOMANES. § 2. EUTRICHOMANES. C. GONOCORMUS. 



ultimate segments; indusium sunk, cup-shaped, the mouth dilated, slightly 

 2 — lipped, naked, 



Trop. Asia, New South Wales, Mascarenes. 



* (14) T. palmatifidum, Jr. lUUn., V. D. B., Hljmen. Jav., 20, 

 tab. XIV; T. digitatum, Sw., var. palmatifidum, Hk. Bk., Syn. Fil., 76. 



Rhizome slender, creeping, branched, intricate. Stipes scattered, capillary, 

 pubescent, 1 — 3 c.M. long. Fronds 1 — 1*/2 c.M. long, 1 — 2 c.M. broad, digitato- 

 dichotomous, the base cuneate or rounded. Ultimate segments linear, very 

 unequal in length, V\^ — 2 m.M. broad, the apex rounded, obtuse, retuse, the 

 margin minutely denticulate, each projection purveyed with a group of short, 

 flexuose ciliae. Texture thin, hyaline; veins 1 in each segment, ciliate, nearly 

 reaching the apex of the segments. Sori terminal on the segments; indusium 

 sunk, obconical or cupuliform, the surface and the mai'gin ciliate. 



Java. 



* (15) T. diffusum, «!., Enum., 22S; Gonocormus diffusus, V.D.B., 

 Hymen. Jav., 9, tab. IV. 



Near. T. minutum, Bl., but the fronds and frondiculae mostly ternate or 

 rarely quinate, oblong or obovate, the base ± cuneate, the edges conduplicate, 

 undulate, the indusium short-funnel-shaped with the mouth suddenly much 

 dilated, spreading and undulate. 



Java. 



* (16) T. luinutuiii, Bl., Rac, Plor. Btz., I, ^^•, Gonocormus minutus, 

 V. D. B., Hymen. Jav., tab. HI. 



Rhizome creeping, branched, intricate, hairy. Stipes filiform, villose at 

 least at the base, 5—20 m.M. long. Fronds and frondiculae conform, roundish 

 in general outline, to + 1 c.M. each way, subtruncate to cordate at the 

 base, palmatifld into many linear segments + ^2 ™-^I- broad. Segments simple 

 or 1 — 2 X forked, the ultimate lobes to 4 m.M. long, the apex blunt, rounded 

 or slightly emarginate; the medial segments often elongate and subpinnatifid. 

 Texture membranaceous, diaphanous. Sori terminal and solitary on the lobes ; 

 indusium sunk, funnel-shaped, but the mouth not very much dilated. 



Java, Borneo, New Guinea. 



* (17) X. proliferum, Jfl., Hk. Bk., Syn. Fil., 76; Gonocormus 

 palmatus, V. D. B., Hymen. Jav., 11, tab. VI. 



