1. CYATHEA. 23 



* (22) C. javanica, m., Rac, Flor. Btz., I, 35. j See Supplement 1. 

 Fronds large, 3-pinnatifid; main rachis unarmed but not rarely rough, 



paleacoo tomentose li ke the s econdary one s< Pinnae to 60 c.M. long, on stalks 

 to 2 c.M. long, linear-lanceolate, acuminate. Pinnulae lanceolate, j^to 2 c.M. 

 broad, deeply pinnatifid. Lobes linear, subfalcate, entire or obtuso-crenulate. 

 Texture subcoriaceous ; under surface buUato-squamulose on the costae; veins 

 8 — 10 on each side of the costulae, the lower forked. Sori 2—6 on each 

 side of the costulae, the lower divaricating; indusium thin, breaking down 

 irregularly, the base persistent, cupuliformj firmer. 

 Java, Sumatra. 



* (23) C siimatrana. Bit., Journ. of Bot., XVIII, 209. 

 Fronds large, 3-pinnatifid to subtripinnate; rachises tomentose, especially 



on the upper side and clothed with long, linear, acuminate, scattered, brown 

 scales, which make the rachises rough when they fall. Pinnae + 50 c.M. 

 long, with the opposite pinnulae of contiguous pinnae overlapping. Pinnulae 

 numerous, spreading, ± 6 — 8 c.M. long, + l\ — 2 c.M. broad, oblong, s ud- 

 2 ; denly acuminate at the narrow, mostly linear, broadly crenate apex, the point 

 ^ ^ blunt, the edges parallel, cut down nearly to the costa, pinnate at the very 

 §*' base. Segments linear-oblong, + 3 m.M. broad, falcate, blunt, entire or crenate, 

 a, not conspicuously recurved at the edge, the lowest 1 — 2 free, mostly bluntly 

 ^ toothed; lowest pinnulae not the largest. Texture coriaceous; costae rough- 

 hairy above; upper surface dark, the under one paler, covered with, pale, 

 bullate scales on the costae and the lower part of the costules ; veins 8 — XO on 

 each side, forked, the higher simple. Sori close to the costules, occupying 

 thef lower (^-^jveins ; indusium membranaceous, thin, breaking down irregularly. 

 Sumatra, Java. 



a 



C inquinans, Christ, Ann. Btz., XV, 83, tab. XIII, fig. 5, a— g; 

 Fronds 3-pinnatifid. Stipes and rachises more or less densely scaly and 

 hairy, the scales to I'/j c.M. long, pale-ferrugineous, the hairs crisped, ferru- 

 gineous, joined into groups. Pinnae 27 — 30 c.M. long, imbricate, sessile, oblong, 

 bluntish, slightly narrowed at the base. Pinnulae sessile, close, to 6 c.M. long, 

 to 1 '/a c.M. broad, bluntish, cut down nearly to the costa into short-acuminate, 

 subfalcate, crenulate to toothed lobes. Texture coriaceous, under surface hairy 

 between the sori ; colour dark-green, paler beneath ; veins inconspicuous, forked 

 at the base. Sori large, 6 — 8 to each lobe; indusium large, flaccid, yellowish, 

 I caducous. 



