FERNS OF THE MALAY-ASIATIC REGION. 39 



60 cm long, like the rachises, black, somewhat rough, and sparsely clothed 

 with tawny, crinite scales; frond 150 cm long, tripinnate; pinnse about 

 12 on a side, the longest ones 50 cm long, 13 cm broad, short-stalked; 

 distinct pinnules about 30 on a side, not quite sessile, 7 cm long, 1 cm 

 broad, acuminate, the lower part cut to the costa, costa velvety above, 

 beneath densely covered with scales of two kinds; secondary pinnules 

 narrowly obovate, obtuse, adnate, crenate-serrate, thinly coriaceous, glab- 

 rous except for ciliate, bullate scales on the costule beneath, almost black 

 above, the nether surface dark-olive; lower veinlets usually forked, but 

 the fertile ones simple ; sori costular, covering the surface of the somewhat 

 contracted fertile pinnules, exindusiate. 



Mindoro (Mount Halcon), in mossy woods, alt. 1,800 m. 



29. Cyathea truncata (Brack.) Copel. (Alsophila truncata Brack, in Wilkes 

 TJ. S. Expl. Exp. 16 (1854) 289). 



Rachises dark-purple, shining, sharply muricate, deciduously furfu- 

 raceous-tomentose, as are also the costae, and the costules beneath; pin- 

 nee 25 to 40 cm long, 10 to 12 cm broad, acuminate; pinnules 5 to 7 cm 

 long, 6 to 12 mm broad, sessile, pinnate except at the apex; secondary 

 pinnules very small, the lower ones stalked, linear-oblong, acute, the 

 margin recurved, sinuate-lobate ; veinlets forked near the base; sori cos- 

 tular, small, dark-orange, exindusiate. 



Celebes to Samoa ; Japan ( ? ) . 



30. Cyathea aneitensis Hooker. 



Eachises unarmed, ebeneous, purple-black, smooth; pinnae 30 to 45 

 cm 'long, 10 to 12 cm broad, sessile or nearly so, shortly acuminate ; 

 pinnules cut almost to the costae, which are clothed with narrow, bul- 

 late, pale scales; segments rather distant, oblong, acute, subserrate, cori- 

 aceous-membranaceous ; veinlets forked; sori copious, medial; indusium 

 thin, usually splitting first down one side. 



Aneitium, Ternate. 



31. Cyathea arachnoidea Hooker. 



Frond tripinnate, firm-coriaceous, glabrous above, cobwebby beneath; 

 axes dark, muricate with short, black, sharp spines, clothed with a rusty 

 tomentum; pinnules 5 to 10 cm long, 12 mm broad, pinnate almost 

 throughout; secondary pinnules 6 mm long, linear, acute, subf alcate ; 

 veinlets inconspicuous; sori medial, indusium thin, white, and delicate, 

 breaking into irregular, laciniate segments. 



Ternate, Queensland; Java? 



32. Cyathea tripinnata Copel. in Philip. Journ. Sci. 1 Suppl. (1906) 251. 

 Trunk 2 to 3.5 m high, 10 cm thick, its apex and the bases of the 



stipes buried in whitish scales 3 to 5 cm long and 1 mm wide; stipe 

 60 cm long, like the rachis, dull-purplish-black, scurfy with fine tawny 

 squamules, sparsely beset with sharp spines 1 mm long; frond 2 m long, 



