36 1. CYATHEA. • 



to the costa; segments 3 mm. wide, linear-oblong, obtuse, the margin 

 everywhere minutely but sharply serrulate. Texture sUbcoriaceous ; 

 surfaces naked ; upper surface dark-green, lower pale ; upper part of the 

 main rachis and secondary rachises light-brown, beneath almost glabrous 

 and bearing sparse, minute tubercles, above dark-velvety; costae hairy 

 above, beneath dark-purple and bearing a few small scales; veins 11 

 on a side, forked. Sori costular, small; indusium dark-stramineous, at 

 first complete, then with a small irregular mouth, iinally all breaking 

 away. 



Luzon. 



(28) C tspimilosa, Wall. 



Stipes strongly prickly, purpureous or blackish, deciduously puberulous 

 and scaly; main rachis aculeolate at the base, muricate at the middle, 

 often smooth towards the apex; lower fertile segments not invariably close. 



Wai*. uiuriculata : Stipe and main rachis less prickly, the 

 former muriculato-spinulose at the base, muriculate in the upper part, 

 the latter at best muriculato-asperous ; ultimate segments more or less 

 obsoletely crenate-serrulate. 



(28a) C cinerea, Copel., in Leaf!., V, 1681. 



Stipes aculeate with black or blackish, acute spines 8 mm. long. 

 Fronds 2 m. or more long, the rachis fulvous, spinose, minutely furfur- 

 aceous or at length glabrescent, provided with glands near the bases of 

 the pinnae. Pinnae 40 — 50 cm. long, short-stalked, abruptly acuminate, 

 the rachis aculeolate, furfuraceous with very minute, deciduous, cinereous 

 scales intermixed with a few scattered, longer, narrow-linear paleae. 

 Pinnulae subsessile, lanceolate, acuminate, the edge cut down nearly to 

 the costa; barren pinnulae to 10 cm. long, P/, cm. broad, fertile ones a 

 little smaller ; costae above sparingly velutinous, clothed beneath with 

 minute scales intermixed with a few scattered lanceolate-ovate paleae. 

 Lobes 1 cm. long, '/^ cm. broad, subfalcate, acute, serrate in the upper 

 part; costulae sparingly scaly. Texture chartaceous; veins 12 on a side, 

 often forked. Sori costular, large, contiguous; indusium large, deep-brown, 

 breaking down into large persistent fragments. — -A duplicate of Elmer's 

 No. 13860, occurring in the Buitenzorg Herbarium, has the furfur not 

 cinereous but pale-yellow-brown. 



Mindanao. 



