B. sarawakensis. | BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 335 
C. ciharis, but distinct by its much larger leaves with fewer larger lanceolate leaflets 
by the glabrous not scabrid spadix and by the almost unarmed, not scabrid leaf; 
sheaths. It is also allied to C. evilis, but in this the sheaths and the different parts 
of the spadix are very scabrid and the leaflets are a good deal more elongate and 
beneath only spinulous on the primary and secondary nerves, the tertiary ones being 
naked, 
Prats 132.—Calamus pilosellus Bece. The entire specimen of Lobb 1853 in Herb. 
Kew. 
111. CALAMUS sARAWAKENsIS Becc. in Records Bot. Surv. Ind. ii, p. 208. 
= _Descriprion.—Scandent, slender, Sheathed stem 7-10 mm, in diam. Leaf-sheaths 
flagelliferous, strongly gibbous above, obliquely truncate and smooth at the mouth, 
opaque, not rough to the touch, but under a strong lens very finely papillose, finely 
longitudinally striate, armed with a few scattered solitary short broad-based horizontal 
straight spines.  Ocrea very shortly  liguliform and forming a narrow glabrous 
smooth rim to the mouth of the sheath. Leaf-sheath flagella very slender, flattened 
and almost unarmed in their lower portion, feebly clawed upwards, otherwise glabrous 
and not scabrid. eaves not cirriferous, 60-65 cm. long, including the petiole; this 
rather elongate (18-20  cm.), channelled only near the base, otherwise flat and 
smooth above, slightly convex beneath, the margins acute and armed with relatively 
strong remote short horizontal straight or slightly hooked prickles; rachis slender, armed 
beneath along the middle (as is the petiole) with solitary scattered black-tipped claws, 
bifaced in its upper surface where hairy-ciliolate on the very acute angle, otherwise 
glabrous and smooth; leaflets not numerous, 16-18 in all, inequidistant, but not 
fascicled, 3-5 cm. apart, linear-ensiform or linear-lanceolate, thinly papyraceous, 
dark-brown like the other parts of the plant when dry, very slightly paler beneath 
than above, almost equally narrowed to both ends, acute at the base, gradually and 
finely acuminate to the summit into a bristly tip, with 5-7 very fine minutely 
spinulous costulae in the upper surface where the mid-costa is very slightly stronger 
than the side ones, and like the minor nerves sprinkled with very small scattered 
spinules ; ; the lower surface entirely covered with very minute short subspinulous 
hairs, and these arranged along the very numerous longitudinal nerves and nervelets; 
transverse veinlets rather sharp, but remote and very short; margins very remotely, 
adpressedly and inconspicuously spinulous; the largest NA those about the middle, 
20-22 em. long, 15-16 mm, broad; the lower ones narrower and shorter, the upper 
somewhat shorter, but not narrower; the two of the terminal pair free at the base. 
HasrrAT.— Borneo ; in Sarawak on Mount Mattang near Kuching, Beccari P. B, 
No, 1920. 
Onservations.—The type-specimen consists of a portion of the sheathed stem with 
two leaf-sheaths and two entire leaves; the spadices are wanting; nevertheless its 
affinities with the other species of the group of C. ciliaris are very obvious. It is 
characterized by the inequidistant, not numerous, linear-lanceolate leaflets which have 
5-7 slender spinulous costae above, and have the lower surface entirely covered with 
very minute spinulous hairs, these arranged in very close longitudinal lines; the 
