Qia. HEMIGRAMMA. 333 



Nat. Pfl.fam., I, 64; G-ymnopteris latifolia, Pr., Tent. Pterid., 244 ; ff. taccae- 

 folia^ J. Sm., Copel., Polypod. Philipp., 42 ; G. trilobata, J. Sm., Hk., Icon. 

 P]., X, tab. CMVII; G. subquinquefida, Pr., 'Epim., Ibl ; Polybotrya latifolia, 

 Meyen., (oldest name); — var. major, Christ, in Pliilipp. Journ., 1. c. 



Rhizome short, erect or creeping, the scales brown, linear, lanceolate 

 or subulate, often crisped, entire or variously fringed. Fronds sessile, 

 or placed on stalks to 30 cm. long, approximate, clustered or placed in 

 a dense rosette, the fertile ones often placed on the longest stipes. 

 Barren fronds + T'/i — 30 cm. long, simple, entire, repand, undulate, incised, 

 3-fid or pinnate, sometimes rooting at the apex, the simple fronds acute, 

 rounded, truncate or cordate at the base, the pinnate fronds to 60 cm. 

 long, with the pinnae acute, entire, lanceolate, with the rachis winged in 

 the more complex forms, and the lowest pinnae forked. Texture varying 

 from membranaceous to coriaceous ; surfaces naked but the costa occasion- 

 ally scaly like the stipe; main veins united by transverse veins. Fertile 

 fronds simple, linear-lanceolate, + 5 — 15 cm. long, 3 — 12 mm. broad, 

 sometimes 3-fld at the base, rarely pinnate. Sori mostly in 2 or more 

 longitudinal rows. — Exceedingly variable. 



Forma typica. — Malaya. 



War. uiajor: Stipes scaly, the scales subulate-setiform, black. 

 Fronds very thin, nearly diaphanous. — Philippiyies. 



(2) H. grandifolia, Copet., in Philipp. Journ., VF, 77. 



Fronds pinnate, long-stalked, + 30 cm. long and as broad. Pinnae 

 opposite, in 2 — 3 pair; terminal barren pinna 3 fid, 1 — 2 lower barren 

 ones forked, lowest fertile ones simple, to 15 cm. long, ± 2 mm. broad. 

 Sori occupying the whole under surface of the fertile pinnae. 



New Guinea. 



Sori free, mostly elongated, running in various directions along free 

 or anastomosing veinlets. No indusium. No paraphyses. 



Fronds uniform or the fertile ones slightly contracted ; veins anastom- 

 osing irregularly; main veins and included fr«e veinlets present in both 

 barren and fertile fronds. 



East Malaya, Papua. 



