4:6 2. HEMITELIA. § 2. AMPHICOSMIA. 



long, subsessile, acuminate. Pinnulae sessile or subsessile, elongate-oblong, 

 6 — 10 cm. long, 1 '/j — 2'^ cm. broad, the apex acuminate, crenate or 

 serrulate. Ultimate segments free or slightly connected at the base, 

 approximate, linear-oblong, subfalcate, 2 — 5 mm. broad, obtuse, crenate, 

 serrulate, toothed or lobed. Texture membranaceous to chartaceous; 

 surfaces naked ; upper surface bright-green, lower paler ; costae and costulae 

 provided beneath with deciduous, remote, small, buUate or somewhat 

 flattened, acuminate-ovate, adpressed, pale-brown scales; veins 6 — 10 on 

 a side, 2 — 3-furcate or sparingly pinnate, only the higher simple Sori 

 costular, subremote ; indusium small, scale-like. — The specimens occurring 

 in the Buitenzorg Herbarium have higher scales of the costae and those 

 of the costulae rather buUate-ovate. 



War. dissoluta: Ultimate segments less approximate, to 5 mm. 

 apart. 



Java^ Sumatra. 



(3rt) U. alsophiliforiiiiis. v. A. r. «., Bull. Btz., 1914, XVI, 15. 



Trunk to 5 m. or more high. Stipes about 40 — 50 cm. long, deciduously 

 grey-brown-furfuraceous, muricate in the upper part, aculeate and 

 deciduously scaly towards the base; scales long, lanceolate-subulate, 

 fuscous, glossy, partly minutely eroso-denticulate. Fronds 3-pinnatifld, 

 sub-3-pinnate, abruptly acuminate, the main rachis muriculate in the 

 lower part, otherwise smooth or asperulous, when young probably ochraceo- 

 furfuraceous beneath, as are the secondary rachises and costae. Pinnae 

 lanceolate-elongate, the higher sessile, ascending, the others shortly 

 petiolulate, horizontal, the lower proportionally long-stalked, reduced; 

 largest pinnae about 50 — 60 cm. long, 20 — 25 cm. broad at the middle, 

 acuminate, somewhat narrowed at the base, the rachis and costae 

 subcastaneo-tomentose above. Pinnulae numei'ous, coriaceous, naked, dark 

 above, paler beneath, sessile or subsessile, approximate, linear-lanceolate, 

 the higher subspreading, the others horizontal or nearly so, the lower 

 somewhat abbreviated, not rarely somewhat deflexed; largest pinnulae 

 about 10 — 12 cm. long, I'/j — 2 cm. broad at or above the base, subabruptly 

 acuminate and toothed at the apex, otherwise deeply pinnatifld; costae 

 and costulae sparingly scaly beneath. Ultimate segments linear-oblong, 

 more or less approximate, more or less falcate, bluntish or subacute, 

 more or less recurved and crenate-denticulate at the pellucid-lined edge; 

 largest segments 10—12 mm. long by 3 — 4 mm. broad; lower segments 



