1. CYATHEA. §7 



{29b C. niitrafa, Copel., in Philipp. Journ., IV^, 42. 



Pinnae 40 cm. long, 15 cm. wide, sessile. Pinnulae 7 cm. long, 

 1 Vj cm. wide, acuminate, cut almost throughout into distinct segments. 

 Segments linear-oblong, obtuse, the lower ones stalked and deeply lobed, 

 the upper crenate. Texture coriaceous; surfaces naked; upper surface 

 black, lower brownish-green; margins deflexed; main rachis brown, almost 

 glabrous, minutely scabrous, bearing scar-like aerophores at the bases of 

 the pinnae and along the angles of the rachis; secondary rachises sparsely 

 clothed beneath with a scurf of minute scales and a very few lanceolate 

 ones 2 mm. long; tertiary rachises hairy above, bearing 2 kinds of scales 

 beneath; veins forked. Sori costular; indusium very large and globose, 

 then split like a mitre, or to the base, and very persistent, covering the 

 nether surface. 



Mindanao. 



(30) C oillOpS, Hassh. 



Stipes deciduously scaly at the base, otherwise punctulate, and 

 tomentose like the rachis; costae striguloso-puberulous above, densely 

 ferrugineo-paleaceous beneath, the scales linear; costulae naked above, 

 scaly beneath. 



(31a) C lioheri, Christ. 



Omit the variety tonglonensis. See Hemitelia tongionensis v. A. v. R. 



[31b) C callusa, Christ; Also-phila extensa, J. S^n., in Uk. Journ. 

 of Bot., Ill, 419. 



(31c) C frueluosa, Copel., in Philipp. Journ., IV°, 34. 



Trunk 8 — 5 m. high, 10 cm. thick. Fronds almost sessile, 3-pinnate, 

 200 cm. long, 60 — 90 cm. broad, the main rachis setoso-paleaceous above, 

 purplish, scabrous and furfuraceous below. Pinnae 15 — 20 on each side, 

 the lowest reduced, the rachis purple-brown, beneath asperous and clothed 

 with minute, purplish squamules and rufo-stramineous scales. Pinnulae 

 8 cm. long, 2 — 2 % cm. broad, sessile, acuminate and serrate at the apex, the 

 rachis velutinous above, rufo-paleaceous beneath. Tertiary segments distinct, 

 mostly separate, obtuse, 1'//, cm. long, 2 — 2% mm. broad, adnate or the 

 lowest truncate at the base, dimorphous, the barren ones entire or nearly 

 so, the fertile ones deeply crenate, the costules naked above, squamulose 



