1. CYATHEA. 25 



segments; indusium splitting into large pieces and only the lower part 

 persistent. 

 Luzon. 



(13&) C. liiugii, Ust., in Fed., Rep., IX, 422; C. fusca, Bk. 

 (t. Copel.). 



Fronds 3-pinnatifid. Pinnae 40 cm. more or less long, 25 cm. broad, 

 the rachis shortly dark-strigose above, glabrescent beneath, as are the 

 Gestae. Pinnulae alternate, articulate to the rachis, the lower and central 

 ones petiolate, rather spreading, 13 cm. long, P^ cm. broad near the 

 base, the apex subulate-acuminate, obsoletely serrulate, the edge cut V^-way 

 down to the costa in the lower part, the base unequal-sided, broadest, 

 truncate and parallel to the rachis on the upper, narrower, cuneate on 

 the lower side; higher pinnae sessile or adnate, smallei', less incised, 

 highest adnate or confluent, entire or obsoletely crenated. Lobes obscurely 

 crenated, the lower obliquely truncate. Texture herbaceous; costulae 

 pinnate in the lobes; veins 5 — 6 on a side, often simple, the lowest 

 posterior springing from the costa. Sori 3 — 4 on a side, occupying the 

 lower veins, medial; indusium globose, at length shallowly cup-shaped, 

 the mouth regularly truncate. 



Neio Guinea. 



(13c) C Versteegii, Christ, in Nov. Guin., VIII, Bot., 161; 

 {? C. fusca, 5ft.). 



Stipes spinose. Lowest pinaae sessile, oblong, up to 50 cm. long 

 and 22 cm. broad, hardly narrowed at the base, the rachis yehowish, 

 short-hairy or furfuraceous. Pinnulae ± 18 pair below the pinnatifid apex, 

 alternate, approximate, sessile, 2 cm. broad, acuminate, cut down to a 

 winged costa into oblong, crenulate, obtuse or rarely subacute, subfalcate 

 lobes 8 — 12 mm. -long and 5 mm. broad. Texture papyraceous; colour 

 pale-green; surfaces clothed with minute, ovate, brown scales on the 

 costulae and veins ; costulae brown-green ; veins + 7 on each side, forked. 

 Sori 5 — 6 on each side, minute ; indusium thin, at length plano-patelliform. 



New Guinea. 



(.14) C Integra, .7. Sm. 



Elmer's No. 13473, from Mindanao, has the pinnulae to 3 cm. broad, 

 the ultimate segments to 6 mm. broad, acute, nearly entire or hardly 

 subserrate-crenate. 



