28 1. CYATHEA. 



approximate, elongate-oblong, subfalcate, to 3 cm. broad, subobtuse, the 

 edge somewhat revolute, subentire or crenulate. Texture more or less 

 coriaceous; surface naked; upper surface dark-green, lower paler; costae 

 hirsute above, furfuraceous or scaly beneath, costulae slightly so, the 

 covering more or less deciduous ; veins 9 — 12 on a side, mostly 

 forked. Sori costular, occupying the 1—4 — 6 lower veins; indusium 

 membranaceous, breaking very irregularly by a single slit, with a mostly 

 persistent, roundish, lobed or erose, flattish base encircling the base of 

 the receptacle. 



Forma typica: Pinnulae I'/a cm. broad; segments 2% mm. broad, 

 subentire or crenulate, often entire at the apex; tomentum of costae and 

 costulae bene.ath not intermixed with larger scales. — Java. 



Forma latior : Like the type but the pinnulae and segments respectively 

 2 cm. and 3 mm. broad. — Java. 



Forma subspinulosa : Like the preceding, but the rachises more or less 

 asperulo-muriculate, and the stipe shortly and sharply aculeolate at the 

 base. — Sumatra. 



Forma squamulosa: Like the type but the segments more distinctly 

 crenulate, and the tomentum intermixed with proportionally long, lanceolate- 

 subulate, brown scales. — Java. 



Forma asperula: Like the preceding but the rachises more or less 

 strongly asperulo-muriculate. — Java. 



(18&) €. Foersteri, «**., in Fed., Rep., X, 321. 



Fronds 3-pinnatifid. Pinnae elongate-oblong, 40 cm. or more long, 

 18 cm. broad, acuminate. Pinnulae alternate, subsessile, suberecto-patent, 

 linear-lanceolate, nearly 10 cm. long, I'/j broad, acuminate, cut down 

 nearly to the costa. Laciniae linear, subfalcate, 8 mm. long, hardly more 

 than 2 mm. broad, subacute, distinctly serrate-crenate in the lower part. 

 Texture chartaceous; upper surface olive-green, lower paler; rachises of 

 the pinnae purple-brown, ferrugineo-villose above, clothed beneath with 

 dense, small, orbicular, ovate or linear, membranaceous, pale-brown or 

 pellucid, setose squamules intermixed with a few lanceolate, setoso-ciliate 

 larger ones ; costae strigoso-villose above, beneath scaly like the rachises ; 

 costulae and veins distinct, subpellucid, hairy on both sides; veins 8 — 10 

 on a side, forked, the higher simple. Sori subcostular, 2 — 3 on a side ; 

 indusium firm, red-brown. 



New Guinea, 



