2. HEMITELIA. S 2. AMPHICOSMIA. 45 



beneath. Pinnae subsessile, the lowest much reduced, deflexed, the largest 

 50 cm. long, 20 cm. broad, the apex abruptly acuminate, the rachis 

 minutely asperulous beneath, black-purpureoas-velutinous above. Pinnulae 

 subsessile, 10 cm. long, 2 cm. broad, acuminate, pinnate, the rachis pilose 

 above, clothed beneath with lanceolate and ovate, entire, rufous scales 

 intermixed with smaller ones of the same colour. Tertiary segments 

 more or less falcate, acute, subentire to serrate, the lower often free, 

 adnate or subpetiolate, 10 — 12 mm. long, the others connected. Texture 

 coriaceous; surfaces naked or nearly so; veins 10—12 on a side, forked. 

 Sori costular, brown; indusium brown. 

 Mindanao. 



\2b) H. inerapiensis, ». A. e. «., in Bull. Btz., 1914, XIV, 16. 



Stipes muricate to aculeate in the upper part, gradually spinose 

 towards the somewhat scaly base, probably deciduously furfuraceous ; 

 rachises probably deciduously furfuraceous, hardly asperulous, rusty- 

 tomentose above. Pinnae to 50 cm. or more long, acuminate, apparently 

 articulate at the base. Pinnulae linear-lanceolate, the largest 12'/2 cm 

 long, 2V2 cm. broad near the base, long-acuminate, cut down nearly 

 to the costa, pinnate at the base, the higher somewhat remote, ascending, 

 the lower rather close, horizontal or subdeflexed, somewhat reduced. 

 Segments linear-falcate, 3 mm. broad, acute or subacute, separated by 

 broad sinuses, crenate or toothed and somewhat recurved ad the edge, 

 the lower free, rather smaller, adnate to truncate at the base, not rarely 

 horizontal and nearly straight. Texture coriaceous ; surfaces naked ; upper 

 surface dark, lower yellow-brown when dry; costae ,_ tertiary rachises) 

 brown-hairy above; costulae sparingly subbullate-squamulose beneath; 

 veins 10—12 on a side, the higher forked, the central and lower twice 

 forked or sparingly pinnate. Sori costular or subcostular, suboviform ; 

 receptacle columnar; indusium minute, rudimentary. 



Sumatra. 



(3) H. Jiinghiiliniana, Blett., Rac, Flor. Btz., I, 38., Alsophila 

 JungJmhniana, Kze., in Bot. Zeit., 1848, 28i ; CyatJiea Junglmhniana, Co^yel., 

 in Philipp. Journ., IV^, 58; — var. dissoluta, Ptac, 1. c. 



Stipes aculeate at the base only, otherwise smooth or minutely nodulose, 

 as are the rachises. Fronds 3-pinnatifid ; rachise stramineous or brownish, 

 deciduously tomentose, hirsute above. Pinnae lanceolate-oblong, to 60 cm. 



