﻿18 1. CYATHEA. 



round or oblong, buUate, rigid, with the edges much recurved. Texture rigid; 

 surfaces copiously scaly when young. Sori 1 — 2 to each ultimate segment, 

 quite covering its under surface; indusium globose, fragile. 



Neiv Guinea. 



(8) C polypoda, BU., Trans. Linn. Soc, Bot., 2d Series, IV, 250. 



Fronds large, 5-pinnatifid ; main rachis naked. Pinnae lanceolate-oblong, 

 ± 4S c.M. long, 10 — 13 c.M. broad. Pinnulae lanceolate, the lower stalked, 

 + 15 m.M. broad, pinnatifid nearly to the costa. Lobes oblong, obluse, entire, 

 3 '/a — S m.M. broad. Texture moderately firm; under surface covered with 

 numerous white, ovate scales, especially on the costae; veins 7 — 8 on each 

 side, deeply forked. Sori medial between the costulae and the margin; in- 

 dusium cupuliform, small, naked. 



Borneo. 



* (9) C lewcotricha, Christ, Ann. Btz., XX, 135. 



Fronds large, tripinnatifid, subtripinnate; main rachis naked, glossy, reddish- 

 brown. Pinnae stalked, approximate, to 50 c.M. long, + 18 c.M. broad, acu- 

 minate, + 30 on each side below the pinnatifid apex. Pinnulae + sessile, 

 + 9 c.M. long, ± 18 m.M. broad, acuminate, the base slightly narrowed, 

 the edge cut down nearly to the costa; lowest pinnulae not the largest. 

 Ultimate segments pectinate, bluntish or subacute, falcate, + 23 on each 

 side below the pinnatifid apex, + 2 '/a m-M. broad, lineai'-oblong, entire or 

 slightly crenate towards the apex, the margin hardly reflexed. Texture coria- 

 ceous; under surface not glaucous; costae, costulae and secondary rachises co- 

 vered beneath with pale, + adpressed, firm hairs like the costae above; 

 veins + 12 on each side, oblique, 2 — 3 X forked. Sori medial on the lower 

 veins, 4 — 5 on each side of the costulae; indusium thin, hyaline, globose. 



Borneo. 



(10) C suluciisi§i, JBh., Journ. of Bot., XVII, 65. 



Fronds large, 3-pinnatifid or subtripinnate; main rachis pale-brown, naked. 

 Pinnae sessile, oblong-lanceolate, 30 c.M. or more long, 12 — 15 c.M. broad. 

 Pinnulae lanceolate, sessile, 1 — 2 c.M. broad, cut down nearly (or occasionally 

 at the base quite) to the costa into ligulate-oblong, toothed segments + 4 — 5 

 m.M. broad. Texture moderately firm; rachises naked, pale-brown; under 

 surface covered with many small, white, buUate scales on the midribs of 

 the pinnulae and ultimate segments; veins 5— 6-jugate, ereclo-patenl, dis- 



