C. hypertrichosus.]  BEUCARI. THE SPECIES OF CALAMUS.—SUPPLEMENT, 17 
suddenly broaden at their upper end and are produced into a short ovate membran- 
ous limb, kept spreading by the base of their respective spikelets; the spikelets are 
usually 4-5 em. long, kept horizontal or deflexed by a very conspicuous 
axillary callus; they have 15-18 flowers on each side; spathels shortly asymmetrically 
infundibuliform, ^ strongly  striately veined; ^ involuerophorum shallowly cupular ; 
involuere immersed in the involucrophorum and like it shallowly eupular, bidentate 
and lunately excavate on the side of the neuter flower; areola of the neuter flower 
lunate, sharply edged. Female flowers 2 mm, long, inserted at an angle of about 45°, 
Fruiting perianth almost explanate, 3 mm. in diameter, divided into 6 lanceolate almost 
equal segments; those of the corolla slightly longer than those of the calyx, 
Fruit very small, broadly ovoid, tipped by a thick mucro, 1 mm. long, crowned by 
the small recurved stigmas, 6 mm. long inclusive of perianth and mucro, and 
4 mm. broad; the scales very small, in 15 longitudinal series, slightly convex, very 
obsoletely grooved along the centre, yellowish with a red band on the anticous 
margin; the apex triangular, scarious, inconspicuously toothed, Sed ovoid. 
Hasirat.—British North Borneo. Collected by Miss Z. 8, Gibbs, Jan. 1910 
at 700 it. No. 4349. ; 
OBsERVATIONS.—Indistinguishable from some varieties of C. javensis in the 
vegetative parts; but the flowers and especially the fruits are considerably smaller 
and they have a much shorter mucro. The leaflets are however more long-acuminate 
than in any variety of C. javensis; the flowers of the male spadix are inserted 
at a more acute angle; the involucres are more distinctly cupular; the scales are 
smaller than iu ©. javensis) and not at all, or only very slightly, grooved along 
the centre. It might perhaps be considered as a subspecies. The fruits I have 
seen are not thoroughly ripe but apparently have almost attained their definitive 
dimension. he 
SuppL. PLATE 9.—Calamus acuminatus Becc. An entire leaf and an entire 
female spadix with almost mature fruits. From Gibbs’s No. 4349. 
32a, CALAMUS HYPERTRICHOSUS Bece. n. sp. 
DESCRIPTION. —Scandent, very slender. Sheathed stem apparently 5-6 mm, in diameter 
Leaf-sheaths (of the upper part of a young shoot) strongly striate, minutely and densely 
hairy-furfuraceous, armed with small ascendant light-coloured spines. Ocrea at first 
tubular, membranous, truncate and with long hairs at the mouth, later brittle and 
deciduous. Leaves on the whole about 60 cm. long, with a long petiole and only 
2-3 pairs of side leaflets and one terminal flabelliform and bilobed; the 
petiole alone is about 30 cm. long, very slender, about 2 mm. in diameter, subterete 
and very narrowly grooved on its upper surface, armed with a few straight spines 
along the centre of the dorsum; it is densely covered with a peculiar kind of scurf, 
which consists cf glomerules of brown vesicular cellules, borne at the end of a very 
slender pedicel which may be as much as 1-2 mm. long; the rachis is covered with 
the same kind of scurt, is unarmed and convex on the dorsum and bifaced with 
an acute salient angle on the upper surface; the side leaflets (2-3 in number on 
each side of the rachis) are elliptical-ianeeolate or oblanceolate, are broadest at or 
a little above the middle, and taper thence towards an acute base and above to 
Ann. Roy. Bor. Garp. CarcurrA Vor. XI. 
