FERNS OF THE MALAY-ASIATIC REGION. 
59 
on a side, forked at the base; sori costular; indusium scale-like, minute. 
Hemitelia manilensis Presl is described as a species resembling this, 
found in Luzon. 
Java, Sumatra. 
95. Cyathea mertensiana (Kze.) Copel. ( Alsophila mertensiana Kze. in Bot. 
Zeit. 6 (1848) 586). 
Rachis glabrescent, verrucous with shining, brown warts; pinnas long- 
stalked ; pinnules approximate, short-stalked, oblong-lanceolate, acumi- 
nate, deeply pinnatifid, costae glabrous above, at base beneath bearing 
sparse, white, bullate scales; segments falcate, rather obtuse, margin 
reflexed and obscurely serrulate, the fertile segments contracted and the 
lowest free but adnate; veinlets forked, usually twice, white-hairy; sori 
minute, crowded, occupying the entire segments; indusium a cup-shaped 
basal scale. 
Bonin. 
96. Cyathea ornata (Scott) Copel. (Alsophila ornata Scott in Bedd. Ferns 
Brit. Ind. (1870) 342). 
Frond ample, tripinnate, moderately firm in texture; rachises castane- 
ous, smooth, naked beneath; pinnae stalked, oblong-lanceolate, 45 to 60 
cm long; pinnules sessile, lanceolate, 8 to 10 cm long, 18 to 24 mm wide, 
costas scaly, especially beneath; segments close, ligulate, obtuse, denticu- 
late, 2 mm wide, green on both sides, without scales or hairs; veinlets 8 
to 12 on a side, forked; sori minute, subeostular, exindusiate. Alsophila 
Oldhami Bedd. is usually regarded as this species; but as figured by 
Beddome it differs in having long-stalked pinnas and the costules scaly 
beneath. 
Sikkim, alt. 750 m. 
97. Cyathea dementis Copel. (Alsophila dementis Copel. in Philip. Journ. 
Sci. 1 Suppl. (1906) 143). 
Trunk 9 m high, stout ; stipe brown at the base, shading to stramineous 
in the rachis, clothed at the base with linear, whitish scales 5 to 15 mm 
long, exceedingly rough with blackish, stout, sharp spines 4 to 5 mm 
long; rachis glabrous, beset with smaller spines; frond 100 to 150 cm long, 
ovate; middle pinnas 30 to 40 cm long, their rachises rough; pinnules 6 
to 8 cm long, 15 mm wide cut at the base to the costa, elsewhere to a 
narrow wing, costas above bearing dirty-white hairs or nearly naked, 
beneath naked or sparsely furfuraeeous-squamulose ; segments subfalcate, 
entire, obtuse, coriaceous, glabrous, greenish-brown above, paler beneath 
but not glaucous; veinlets forked, about 10 on a side; sori infra-medial, 
naked, receptacles evidently paraphysate. 
Mindanao ( Lanao ) . 
