34 1. , CYATHEA. 



on a side, often forked. Sori costular, on the 2 — 3 lower veins; indusium 

 large, firm, persistent, truncate at the mouth. — Rachis unarmed? 

 New Guinea. 



(24a) C Sienex, ®. A. e. »., in Bull. Btz., 1914, XVI, 4. 



Stipes densely deciduously scaly, at length muriculato-asperous ; scales 

 nearly white, long, narrowly linear-subulate, filiform at the point, like all 

 the other scales finely ciliolate-denticulate at the edge, the teeth or ciliae 

 red-brown. Fronds 3-pinnatifid, sub-3-pinnate, abruptly acuminate; rachises 

 tomentose above with adpressed, brown or grey-brown hairs, beneath 

 deciduously scaly and hirsute, at length asperulous, the scales partly 

 minute, ferrugineous, partly similar to those of the stipe but smaller, 

 the hairs long, firm, whitish or brownish, articulated. Pinnae stalked; 

 central pinnae spreading, falcate, 40 cm. long, 15 cm. broad at or near 

 the base, abruptly acuminate; lowest pinnae reduced, rather horizontal, 

 broadest at the middle. Pinnulae numerous, close, subsessile, linear, 

 straight or falcate, 1 '/, cm. broad at the base, deeply pinnatifld, acutely 

 acuminate. Segments close, oblong, 3 mm. broad, subfalcate, blunt to 

 sUghtly acuminate, the edge recurved when dry, crenate; lowest segments 

 free. Texture subcoriaceous to rigidly coriaceous ; both surfaces long-hairy 

 on the veins; costae hairy above, scaly and hirsute beneath; costulae 

 long-hairy above, hairy and squamulose beneath, the scales buUate; veins 

 7 — 8 on a side, simple or forked. Sori few, medial on the lower veins; 

 indusium scariose, at length cup-shaped or irregularly lobed. 



Sumatra. 



(26a) C tug^&x, r. A. r. Jf., in Bull. Btz., 1912, VII, 8; G.confaminans, 

 Copel, Phillipp. Journ., VF, 69 (not IV^, 60). 



Fronds large. Primary and secondary rachises pale-fuscous, aculeate 

 and asperous with large and small, sharp, dark-tipped, scattered prickles, 

 deciduously dark-tomentose above. Pinnae 70 cm. long,, pinnate, on stalks 

 to 10 cm. long, the apex shortly acuminate, pinnatipartite. Pinnulae 

 lancelate-oblong, abruptly caudate-acuminate, the central ones 15 cm. 

 long, 2 '/i cm. broad at the base, sessile, the lowest nearly as long, 3 cm. 

 broad near the base, stalked, cut down nearly to the costa, pinnate at 

 the base, the acumen subulate, acute, entire, shghtly lobed at the base. 

 Segments linear, falcate, horizontally spreading or nearly so, the largest 

 2 cm. long, 3 — 4 mm. broad, blunt, entire, narrowly recurved at the 



