2. HEMITELIA. § 2. AMPHICOSMIA. 53 



segments bluntish, + 5 mm. broad, the lower free, pinnatifid, the central 

 adnate, contiguous. Texture coriaceous; surfaces naked; costae squamulose 

 in the lower part with minute, pale, bullate scales intermixed with some 

 scattered, deciduous, crisped hairs; veins ± 10 — 12 on aside, mostly forked; 

 veinlets of lower veins often forked again. Sori costal ; indusium rudimentary. 

 Sibuyan Island. 



(8) H. nianilensis, JPf„ in Abh. Bohm. Ges., V, 351. 



Pinnae oblong, to 30 cm. or more long. Pinnulae subsessile, linear, 

 ± 7'/.^ cm. long, + 2 72 cm. broad, deeply pinnatifid towards the apex, 

 pinnate at the base, the apex abruptly acuminate, the acumen + l^j^^ cm. 

 long; segments linear, slightly falcate, obtuse, serrulate, the lower ones free, 

 rounded at the base, sessile. Texture thinly coriaceous; rachis muricate 

 below; surfaces naked; under surface very pale, glaucescent; veins deeply 

 forked, the lower ones sterile, twice forked. Sori rather costular ; indusium 

 small, adpressed to the lamina, at length deeply and irregularly incised. 



Liizon. 



(9) U. heterochlaiuydea, ». A. ». K.,- Cyathea heferochlamydea, 

 CopeL, in Philipp. Journ., IV°, 42; C. Chr., Ind. FiL, Suppl. 



Trunk 3 — 5 m. high, 5 — 7V2 cm- thick. Fronds sessile, + I'/j m. 

 long. Largest pinnae 30 — 35 cm. long, abruptly narrowed below the 

 acuminate apex. Pinnulae subsessile, central largest, to + 10 cm. long, 

 + l'/2 cm. wide at the base, acuminate; segments acute, subfalcate, 

 serrulate towards the apex, 2 — 3 mm. wide, separated by sharp sinuses, 

 the lowest segments free and contracted at the base, and a few succeeding 

 ones free but adnate. Texture coriaceous; surfaces naked; upper surface 

 dark-green, lower paler ; main rachis clear-brown, almost glabrous, aculeate 

 with small, sharp prickles ; secondary rachises chestnut, mottled, asperulous, 

 clothed with minute, bullate scales and lanceolate, chestnut ones 2 '/^ mm. 

 long, with dilated bases, both kinds deciduous; tertiary rachises (costae) 

 hairy above and bearing sparse, broadly lanceolate scales I'/j mm. long 

 beneath; veins up to + 9 on a side, the lower ones forked, black beneath, 

 pale above. Sori costular, on the lower '/i — % part of the segments; 

 indusium consisting of a single large scale enclosing on the costular side 

 half or. more of the sorus. 



Negros, Mindanao. 



