321 1. CYATHEA. 



the middle. Pinnulae somewhat remote, sessile, the largest 4 cm. long- 

 by l'/.^ cm. broad, deeply pinnatifld, pinnate at the base; lower pinnulae 

 hardly abbreviated. Segments subremote, linear, somewhat oblique, 6 mm. 

 long by 2 mm. broad, bluntish, slightly crenulate and revolute at the 

 edge. Texture chartaceous; surfaces short-hairy; upper surface dark-green, 

 lower paler; costulae beneath squamulose with whitish, long-acuminate, 

 bullate scales; veins + 6 on a side, forked. Sori on the 4 — 5 lower veins, 

 subcostular, confluent; indusium at length hemitelioid. — Main rachis 

 unarmed ? 



(22) C jaTanica, Bi. 



Stipes minutely aculeate at the base, deciduously scaly and farinoso- 

 tomentose, otherwise punctulato-asperulous ; rachises smooth or asperulous, 

 tomentose, the tomentum intermixed with, deciduous, linear, subfiliform 

 scales; pinnulae with the lower segments not rarely remote and free or 

 nearly so; costae naked or slightly hairy above, more or less deciduously 

 scaly and hairy beneath, the lower scales narrowly lanceolate-subulate, 

 the higher rather bullate or subbuUate, the hairs long, crisped, ferrugineous 

 like the scales; sori subcostular or the lower divaricating; indusium at 

 length rather shallowly saucer-shaped, entire or incised into 2 — 4 rounded 

 segments. 



(23) C suinatrana. Bit. 



Stipes shortly aculeate at the base, otherwise muricate, fui^furaceous 

 and scaly; scales dense, deciduous, linear-subulate, brown, glossy, partly 

 minutely eroso-denticulate, deciduously ciliolate with short, remote, 

 castaneous hairs, the lower the longest, the higher smaller; lower scales 

 of the main rachis similar to the higher ones of the stipe, the following 

 growing gradually smaller and less dense. 



Forma subabrupta: Pinnulae more gradually acuminate. 



Forma obtusata: Pinnulae blunt to very shortly acuminate. 



(23a) See No. 22. 



(236) C. subnliforniis, ». A. ». n., in Bull. Btz., 1913, XI, G. 



Stipes 35 — 40 cm. or more long, deciduously tomentose and scaly, 

 as are the rachises, the scales very dense, more or less spreading, linear- 

 subulate, partly straight, partly crisped, dark-brown or blackish, leaving 



