44 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. (C. poensis. 
rather strong spines which are slightly deflexed, yellowish, rather short (6-12 
mm. long) and have a thickish, 3-5 mm, broad base. Ocrea liguliform, rather 
conspicuous, membranous, exsuecous, glabrous, entire. ^ Leaves non-cirriferous, with 
leaflets conspicuously approximate into 4 distant groups, 60 cm, long in the 
pinniferous pert; petiole about 16 cm. long, subbiconvex, 7 mm. broad, somewhat 
thickened in its basal part, armed on the margins especially near its base with 
horizontal, rather robust, straight, unequal, 10-40 mm. long spines, smooth and 
polished on the back, and with short erect prickles on the upper surface; rachis 
quite unarmed, trigonous, polished beneath with an acute salient angle above and flat 
side faces; the leaflets are very spreading or almost horizontal (all in one plane), 
very approximate by their bases in each group; the groups are 10-12 cm. or less 
apart and are formed by 4-8 leaflets on the whole or by 2-4 opposite leaflets 
on each side of the rachis; those of the terminal group (in one specimen) are 
seven in number, radiately digitate and uniform; they are all distinctly callous at 
their insertion in the axillas and in the small basal cavities on the outer surface; 
they are very elongate or very narrowly lanceolate, broadest about their middle 
and thence gradually acuminate above to a bristly tip; lower down they taper to 
a not very acute base; all are about of one size, the mesials slightly the largest, 
30-35 cm. long, 18-20 mm. broad, almost glossy above, dull and slightly paler 
beneath, unicostate; the costa has a few bristles near the apex, the other nerves 
smooth on both surfaces; transverse veinlets numerous, much interrupted, couspicuously 
prominent on the upper surface; margins minutely and appressedly spinulous. Male 
spadiz simply branched, very slender and long, flagelliform, 2:3 m. long, inclusive 
of a filiform, finely clawed flagellum ; it has very few (4, very distant, partial inflo- 
rescences ; lowest primary spathe much flattened, spinescent on the rather acute 
edges; upper primary spathes very long, cylindricous, very closely sheathing, entire, 
open only at the upper end, where they terminate in a very short obtuse point 
clawed externally in their basal attenuated part, otherwise smooth; the partial inflo- 
rescences are very simple, 15—20 cm. long, have their axial parts slender, filiform 
and bear alternately 4-6 spikelets on each side; secondary spathes very narrowly- 
tubular, very closely sheathing, slightly enlarged above; the lowest is 2-5 cm. long, the 
others are gradually smaller, smooth, glabrous, obliquely truncate and entire at 
the mouth, slightly prolonged at one side into a short triangular acute point; the spike- 
lets are inserted at the mouth of their respective spathes with an axillary callus, very 
spreading, arched or recurved, have a slender axis, are 2-2°5 cm. long and bear 
8-10 distichous horizontal flowers on each side; spathes very shortly and broadly 
infundibuliform, produced at one side into a triangular acute point; involucre forming 
a shallow orbicular cupula. lowers . . . Female spadig . . . Fruit... 
HasrrAT.—N.-W. Borneo in: Sarawak on the top of Mount Poe (1,700 m.), 
collected by F. W. Foxworthy in 1908 (No. 396 in the Manila Herbarium). 
Dayak name “ Kotang Tinkas.” | 
OBSERVATIONS.— A species marked very distinctly among those of group V, to 
which it belongs, by its leaves having very distinctly grouped leaflets, resembling 
much the leaves of C. gracils ; by the quite unarmec trigonus rachis, and by its 
very slender male spadices, simply decompound, and with very few, very simple, 
distant, partial inflorescences. 
