24 1. CYATHEA. 



at the base. Sori costular; indusium breaking down early to an irregular, 

 spread-out base; receptacle large, globose. 

 Mmdanao. 



(10) C. gtuiiiensis, Bh. 



Also in Mindanao. 



(11a) C halconensis, Christ, in Philipp. Journ., IIF, 270. 



Trunk 3 m. high. Stipes short or almost none because of I'educed 

 pinnae at the base, chestnut, spiny, scurfy, and scaly with dark, harsh, 

 narrow paleae 1 cm. long. Fronds 1 m. or more long, hardly half as 

 wide. Pinnae 30 cm. long, 13 cm. broad, sessile, acuminate. Pinnulae 

 up to 7 cm. long, to 2'/^ cm. broad, sessile or subsessile, cut near the 

 base to the costa, and the segments sessile but usually not adnate; seg- 

 ments 3 mm. broad, obtuse or subacute, serrulate. Texture membrana- 

 ceous; surfaces naked; upper surface very dark, lower pale and almost 

 glaucous; main rachis shading upward to a rather light reddish-brown, 

 there almost glabrous and the spines reduced to spai'se, minute prickles; 

 secondary rachises smooth and almost glabrous, light-brown; costae hairy 

 above, beneath, Hke the constulae and veins, black and glabrous except 

 for a very few lanceolate scales; veins 7 — 10 on a side, forked near the 

 base. Sori in the forks ; indusium thin, shining-brown, splitting irregularly 

 into large persistent, pieces. 



Mindoro. 



{lib) C llearniiii, CopeL, in Phihpp. Journ., IV^, 57. 



Trunk 5 cm. thick, thinly clothed at the top with black roots. Stipes 

 provided at the base with thin, grey-brown, narrow scales I'/j cm. long. 

 Pinnae up to 60 cm. long, to 25 cm. wide, sessile. Pinnulae sessile, 

 very acuminate, horizontal, up to 3 cm. wide at the base, cut at the 

 base to the costa, elsewhere to a narrow wing; segments falcate, acute, 

 serrate, 3 — 4 mm. wide, the lowest ones often dilated and pinnatifid. 

 Texture coriaceous; surfaces naked except for occasional squamulae on 

 the costulae beneath; upper surface not very dark, lower pale; main 

 rachis tawny, everywhere glabrous, unarmed; secondary rachises smooth 

 beneath, above clothed, like the costae, with a dark, close pubescence; 

 costae beneath reddish, bearing some fine, furfuraceous scales; veins ±13 

 on a side, forked. Sori costular, crowded, not reaching the apices of the 



