242 38. HYPOLEPIS. § 2. euhypolepis. 



ultimate ones green above, orange beneath, pilose, narrowly marginate; 

 Veins immersed, subpellucid, pinnate or forked, naked above, pilose 

 beneath. Sori solitary at the base of the lobes, on the anterior side. 

 Netv Gkiinea. 



(5) ? H. bivalvis, v. A. v. n., in Bull. Btz., 1914, XVI, 19, tab. V. 

 Rhizome wide-creeping, densely flbrillose like the stipes and rachises ; 

 fibrils spreading, red-brown, articulated, partly long, partly short, more 

 or less deciduous, with a persistent base. Stipes scattered, + 25 — 30 

 cm. more or less long, brown to purplish, as are the rachises. Fronds 

 4 — 5-pinnatifld, the main rachis flexuose. Pinnae alternate, short-stalked, 

 triangular- or ovate-lanceolate, + 15 — 45 cm. long, 5 — 15 cm. broad at 

 or near the base. Pinnulae short-stalked, opposite or alternate, horizontal, 

 1 — 2'/j cm. broad at or near the base, acuminate. Tertiary segments 

 subsessile, triangular-oblong, horizontal, close, + 3 — 9 mm. broad at the 

 base, blunt. Leaflets sessile, oblong, horizontal, nearly close, blunt, entire 

 to lobate-dentate, the largest + i% mm. long, 1 — 2 mm. broad, obliquely 

 cuneate and subdecurrent at the base, connoted by a very narrow wing 

 Texture thick-coriaceous, fragile when dry; surfaces flbrillose; veins 

 indistinct. Sori 1 — 2 to a leaflet, on the anterior side or on both anterior 

 and posterior sides, terminal on the veinlets or (apparently ?) occupying 

 the space between the 2 vein-tips of forked veins; indusium when young 

 rotundate or transversely oblong, apparently 2-valved (compresso-cupul- 

 iform ?), the outer valve (half) coriaceous at the base, membranaceous 

 towards the edge, the inner membranaceous. — The generic place of this 

 species is uncertain because of too young material; it may also be a 

 Dennstaedtia or a Paesia. 

 Sumatra. 



(6) II. papiiana. Sail., in Queensl. Agr. Journ., XXIII, 158. 



Rampant, to 4 m. high, probably 4-pinnate, the rachises more or 

 less glossy-brown, and for the most part bearing prickles and short 

 gland-like hairs. Ultimate pinnae 5—7 7, cm. long, bearing oblong pinnulae 

 about 2'/, cm. long, short-stalked or sessile, deeply lobed. Lobes bluntly 

 ovate. Sori just above the sinuses; indusium very membranous. 



NeiD Chiinea. 



