C. benkulensis.] ^ ECCARI THE SPECIES OF CALAMUS.—SUPPLEMENT 59 
involucrophorum attached outside its own spathel at the base of the one above, with 
a distinct axillary callus, distinctly pedicellate in the lower part of the spikelets, 
expanded at its summit into a very shallowly cupular limb; involucre  orbicular, 
pateriform, discoid ; areola of the neuter flower obscurely lunate and with a conspi- 
cuous central tubercle usually transformed in a short thick pedicel. Female flowers 
3 mm. long; the calyx glabrous, obsoletely striately veined, 3-toothed; the corolla 
as long as the calyx. Fruiting perianth pedicelliform. Fruit narrowly obovate or 
obovate-subclavate (not quite mature), suddenly acutely beaked, 16 mm. long, 6 mm. 
broad (probably somewhat larger when full grown); scales subsquarrose, arranged in 
15 longitudinal series, with a triangular rather obtuse point, very slightly convex, 
not or very faintly grooved along the centre, dullish, straw-coloured, edged with 
a narrow red-brown line, the margin finely erose-ciliate. Seed elongate. 
Hasrrar.— British North Borneo on Mount Kinabalu, between 8-9,000 feet; collec- 
ted by Miss Z. S. Gibbs. Febr. 1910, No. 4848. 
OBSERVATIONS,—Quite distinct in the group of C. ciliaris by its leaf-sheaths densely 
set with prickles; by the narrowly lanceolate subequidistant Jeaflets not hairy 
nor scabrid, and covered only with inconspicuous subpunctiform hair-like scales on their 
lower surfaces. In general aspect, in the spadices and in the shape of its fruits, 
it much resembles C. hispidulus and C, scabrifolius. 
SUPPL. PrATE 29.—Calamus  Gibbsianus Bece. The entire Gibbs’ specimen 
No. 4348. 
110v, CALAMUS BENKULENSIS Becc. n. sp. 
Descriprion.—Scandent and slender. Sheathed stem 10—12 mm, in diameter. Leaf. 
sheaths elongate, cylindrical, transversely plicate or slightly gibbous above, very 
obliquely truncate, and with a thin smooth margin at the mouth, and armed with a 
few scattered, relatively large, triangular, rigid spines, which point slightly upwards, 
have the base broad,‘ swollen above, and concave underneath: otherwise the entire 
surface of the leaf-sheaths is rendered very scabrid by innumerable small prickles 
pointing upwards, similar to the larger spines but of a diminutive size. Ocrea liguli 
form, bearded. Leaves short, with very few leaflets and no petiole, and apparently 
ending in a slender clawed cirrus, at least there is a portion of something that seems 
such in the only leaf seen by me; the rachis is glabrous, about 45 cm. long in 
the pinniferous part: on its upper surface it is flat near the base and has a salient 
obtuse smooth angle in the remainder: underneath it is scabrid but only in its 
lowest part, and is armed throughout with rather distant, solitary or geminate or 
ternate claws. Leaflets very few, alternate, nine in all (in one specimen), rather 
firmly papyraceous, green, smooth and glabrous on both surfaces, slightly paler on 
the lower, 5-costulate, the middle costa slightly stronger than the side ones, which 
are slender and hardly distinguishable from a few secondary nerves which are 
also present; usually the leaflets have on the upper surface a conspicuous glossy 
band along the lower margins; similar bands occur occasionally along some of the 
longitudinal nerves, otherwise the upper surface is dull; transverse  veinlets very 
fine, numerous and continuous; margins almost smooth or with an inconspicuous 
Ann. Roy. Bor. Garp. Catcurra Voi, XL, 
