D. pilosellus. | BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 333 
erect from inside the mouth of their respective spathes, then arched scorpioid; the 
largest, the lowest, 6-7 cm. long with 8-10 alternate and subunilateral gradually 
diminishing spikelets, the summit bearing solitary flowers right and left; secondary 
spathes a good deal more strongly scabrid-hispidulous than the primary ones, tubular, 
very slightly enlarged above, closely sbeathing, truncate and ciliate at: the mouth, 
prolonged at one side into a finely subulate hairy tip; spikelets attached above the 
mouth of their own spatbes with a distinct axillary callus, patent, arched-scorpioid, 
the largest, the lowest, 15-20 mm, long, with 8-10 alternate remote biseriate assurgent 
flowers; the other spikelets gradually shcrter, the uppermost with 2-3 flowers only; 
spathels elongate, tubular, ciosely sheathing, narrowly infandibuliform, truncate and 
ciliate at the mouth, prolonged at one side into a short triangular point, scabrid- 
hispidulous like the secondary spathes; involucrophorum attached outside its own 
spathel at the base of the one above, calyculiform-subdiscoid, very distinctly pedicellate ; 
involucre shallowly cupular, orbicular, entire or obsoletely toothed; areola of the 
neuter flower depressed, slightly irregularly tumescent with a punctiform scar in the 
centre. Female flowers oblong, slightly narrowed to the summit, 4 mm. long; the 
calyx glabrous, finely obsoletely striately veined, very shortly 38-toothed; the corolla 
as long as the calyx. Fruiting perianth shortly pedicelliform, the lobes of the calyx 
and the segments of the corolla spreading; these last one-half narrower than the 
first and black at their summit. Fruit elongate-ellipsoid, very like that of C. ezilis, 
about 2 cm. long, 8-10 mm. broad, equally narrowed to both ends, distinctly 
apiculate-mucronate; scales squarrose or loosely imbricate with a slightly prolonged not 
adpressed tip, almost flat, very faintly channelled along the middle, pale yellowish- 
brown, opaque, with chestnut polished erosely-toothed margin. Seed apparently very 
similar to that of C. ezilis (seen immature by me). 
Hasrrat.—North-West Borneo on the Gunong Wah near the sources of the 
Sarawak River, Beccari P. B. No. 2821. 
OxsERVATIONS.—Very nearly allied to 0. exilis from which it differs in the leaves 
with fewer leaflets; these furnished with many more spinuliferous nerves, and in 
the young leaf-sheaths densely setose-hispid when young and ultimately scabrid 
through the persistent bulbous bases of the deciduous hairs, while C. ezilis owes the 
roughness of its leaf-sheaths to innumerable very short rigid non-deciduous hairs, 
each of them resting also on a small tubercle. 
Prate 131.—Calamus hispidulus Bece. The entire summit of a plant with a fruit 
spadix.—From Becc. P. B. No. 2821. 
110. CaLAMUS PILOSELLUS Becc. in Rec. Dot. Surv. Ind. ii, 208. 
DrscRiPTION.— Scandent, slender. Sheathed stem 1 cm. in diam. Leaf-sheaths strongly 
gibbous above, very sparingly spinulous, not scabrid to the touch, but minutely 
punctate or very finely tubercled under the lens, probably hairy when young. Ocrea 
very short glabrous, Leaves 60 cm. long (in one specimen), including the petiole; this 
10 cm. long, glabrescent in its first portion, scabrid and hispidulous upwards, rounded 
beneath, slightly and broadly channelled above (or flat when in a fresh state?) with 
ihe margins acute and armed with a few not very long straight or slightly hooked 
