38 COPELAND. 



1 to 2 m long, half as wide, narrowed below, herbaceous; pinnae short- 

 stalked, the middle ones up to 17 cm broad; pinnules short-stalked, 

 close or imbricate, 13 to 16 mm wide, acuminate, cut to a broad wing, 

 costa scaly at' base with fuscous, lanceolate ciliate, deciduous scales ; seg- 

 ments 4 mm broad, obtuse or truncate, subfalcate, entire or crenulate, 

 costules beneath bearing a few minute lacerate squamules; veinlets 6 or 

 7 on a side, forked or simple ; sori medial, exindusiate. 

 Malaya (at least, in Java). 



25. Cyathea margarethae (Sehroter) Copel. (Alsophila margarethae Schr. 

 ex Christ in Ann. Jard. Bot. Buit. II 5 (1905) 136). 



Frond ample, bipinnate; pinnae 40 cm long, 15 cm wide; pinnules 7 

 cm long, lanceolate, cut two-thirds to the costa; segments almost im- 

 bricate, 4 mm long, 3 mm wide, truncate, entire, the under surface and 

 margin bearing long white hairs and a few minute scales, herbaceous; 

 rachis tawny-brown, unarmed, bearing short chestnut hairs, and pale 

 subulate paleae 1 cm long ; veinlets 5 to 8 on a side, the upper ones forked ; 

 sori medial, brown, hardly 1 mm in diameter, mixed with hairs, exin- 

 dusiate. Conspicuous among Malayan species for its hairyness. 



Borneo. 



26. Cyathea boninsimensis (Christ) Copel. (Alsophila boninsimensis Christ 

 in Monsunia 1 (1900) 90; Hemitelia, Diels). 



Stipe fulvo-stramineous, glabrous, asperulous; rachis minutely rough, 

 glabrous; pinnae 1 m long, 10 cm wide; pinnules 5 cm long, 15 mm wide, 

 lanceolate, acuminate, cut so as to have exactly the appearance of Dryop- 

 teris filix-mas parallelo gramma, costae pubescent above; veinlets 7 or 8 

 on a side, all forked, conspicuous; sori minute, 0.25 mm wide, costular, 

 surrounded by scales but without evident indusium. 



Bonin Islands. 



27. Cyathea henryi (Baker) Copel. (Alsophila henryi Baker in Kew Bull. 

 (1898) 229). 



Trunk 2 to 6 m high; frond ample, tripinnatifid, fairly firm, green 

 on both sides but paler beneath, glabrous; rachis purplish, scurfy with 

 minute, irregular, stellate scales, unarmed; pinnae 60 to 75 cm long, 22 

 to 25 cm broad, their rachises chestnut, shining, hairy above ; larger pin- 

 nules 13. cm long, 26 mm broad, cut to a broad wing; segments 10 mm 

 long, 4 mm broad, obtuse, subfalcate, serrulate toward the apex with 

 rounded teeth, sinuses narrow; veinlets about 9 on a side, some forked, 

 but the fertile ones simple; sori nearer the margin than to the costule, 

 marked by slight depressions on the upper surface, indusium none. 



Yunnan, alt. 1,200 m. 



28. Cyathea melanorachis Copel. (Alsophila melanorachis Copel. in Pliilip. 

 Journ. Sci. Bot. 2 (1907) 146). 



Trunk 2 to 3 m high, 5 cm thick, its apex and the bases of the stipes 

 clothed with rigid, chestnut scales 1 cm long, with pale margins; stipe 



