FERNS OF THE MALAY-ASIATIC REGION. 35 



veinlets about 3 on a side, simple or forked; sori medial, indusium per- 

 sistent in large fragments. 



Described from a Philippine plant in cultivation at Kew, and since collected 

 on Mount Banajao, Luzon. 



12. Cyathea polypoda Baker. 



Frond ample, green on both sides, glabrous except for copious whitish, 

 convex, ovate scales, especially on the veinlets beneath; rachis glabrous, 

 unarmed; pinna? oblong or lanceolate, 45 cm long, 10 to 12 cm wide; 

 pinnules lanceolate, mostly petiolate, lowest 6 cm long, 12 mm broad, cut 

 almost to the costa; segments oblong, obtuse, entire, 3 to 4 mm broad; 

 veinlets 7 or 8 on a side, forked; sori medial, indusium cup-shaped, small, 

 glabrous. Near G. Integra. 



Borneo (Mount Kinabalu, alt. 2,100 m). 



13. Cyathea integra J. Sm. 



Trunk 2.5 to 7 m high; fronds 2 m long; rachises brown, beset with 

 sharp spines and sparsely scurfy with minute scales, a few of which are 

 also on the under side of the costae and costules, costa hairy above ; pin- 

 nae 45 cm long, the lower ones somewhat reduced; pinnules 13 cm long 

 or less, 24 mm wide, the lower ones reduced, stalked, cut two-third of the 

 way to the costa into broad, subf alcate, subacute or obtuse, usually entire, 

 thinly coriaceous segments ; sori medial, indusium brown, very persistent. 



Luzon to Mindanao, Amboyna. 



14. Cyathea suluensis Baker. 



Like G. integra, but the rachises less spiny and more scaly, the scales 

 larger and more entire, and more or less bullate, and the frond greener. 

 Jolo and Mindanao, alt. about 600 m. 



15. Cyathea formosana (Baker) Copel. (Alsophila formosana Baker in Ann. 

 Bot. 5 (1891) 190). 



"Frond ample, tripinnatifid, moderately firm, glabrous, green on both 

 surfaces, rachis of pinnae naked, castaneous. Pinnae oblong-lanceolate, 

 30 to 45 cm long, 12 to 15 cm broad. Pinnules sessile, lanceolate, nearly 

 24 mm broad, cut down to a broad wing into oblong lobes 4 mm broad : 

 Veins 6- to 8-jugate. Sori medial." A very variable plant, which is 

 probably not distinct from G. glabra. 



Formosa. 



16. Cyathea glabra (Blume) Copel. (Gymnosphaera glabra Blume, Enumer- 

 ate (1828) 242). 



Trunk 1 to 2 m high, slender ; stipe rough, scaly at the base, upward, 

 like the rachises, glabrescent, shining, dark purple; pinnse usually 45 to 

 60 cm long, stalked; pinnules 5 to 9 cm long, 8 to 15 mm broad, mostly 

 stalked and truncate at the base, acuminate, cut one-fourth to one-half 

 of the way to the rachis, rarely deeper, the lobes triangular, rounded or 



