34 
COPELAND. 
7. Cyathea rheosora (Baker) Copel. (Alsophila rheosora Baker in Journ. 
Bot. 28 (1890) 262). 
Trunk 1 m high; frond ample, deltoid, bipinnate, moderately firm in 
texture, green and glabrous on both surfaces; rachises brown, without 
scales or prickles; pinnas oblong-lanceolate 45 to 60 by 17 to 20 cm; 
pinnules lanceolate, deeply crenate, 15 to 18 mm broad, truncate at base, 
the lower distinctly stalked; main veins 3 mm apart; veinlets 4 or 5 on 
a side, simple; sori costular, crowded, exindusiate. Related to C. glabra 
and C. podophylla. 
Tonkin. 
8. Cyathea dimorpha (Christ) Copel. (Alsophila dimorpha Christ in Ann. 
Jard. Bot. Buiten. II 4 (1904) 41). 
Trunk 4 m high; Stipe and rachis chestnut, unarmed but rough, 
clothed with obscure furfuraceous scales; pinnae dimorphous, the fertile 
occupying the middle of the frond; sterile pinnules shallowly lobed with 
crenulate lobes, fertile pinnules deeply pinnatifid; veinlets simple, about 
3 on a side; sori large, exindusiate. 
Celebes. 
9. Cyathea fructuosa Copel. in Elmer’s Leaflets, 2 (1908) 419. 
Trunk 3 to 5 m high, 10 cm thick; frond almost sessile, 2 m long, 
60 to 90 cm broad, tripinnate; rachis setose-paleaceous above, furfuraceous 
beneath, rough, rachises of pinnae clothed beneath with minute fur- 
furaceous squa mules and large rufo-stramineous scales 5 mm long; costae 
clothed beneath with smaller paleae of the same color; secondary pin- 
nules distinct and separate, 12 mm long, 2 to 2.5 mm broad, dimorphous, 
the sterile entire or nearly so, the fertile deeply crenate; sori round, 
crowded; indusium rust-color. 
Negros Island, on Horn of Negros Mountain. 
10. Cyathea mindanaensis (Christ) Copel. (Alsophila mindanaensis Christ 
in Monsunia 1 (1900) 90). 
Frond hard-coriaceous ; pinnae 40 cm long, ovate, dimorphous ; sterile 
parts apparently tripinnatifid, the fertile tripinnate; rachis clothed with 
long, wooly, rufous fibrils, not spiny; veinlets forked; sori minute, cos- 
tular, exindusiate. 
Mindanao, district of Davao. 
11. Cyathea philippinensis Baker. 
Trunk short, slender; frond 1 m long, 30 cm broad; stipe short, 
very scaly; rachises all densely paleaceous with gray and brown scales, 
unarmed; larger medial pinnae bipinnate at the base; pinnules sessile, 
acute, costae sparsely hairy above, scaly beneath; segments 4 mm long, 
3 mm broad, entire or crenulate, obtuse, lamina glabrous, coriaceous ; 
