108 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUITA. (C, trachycoleus. 
SUPPL. PLATE 59.—Calamus pogonacanthus Becc.— Portion of the sheathed stem 
bearing the base of a fruiting spadix; detached partial inflorescence; lower portion 
of a leaf (under surface); intermediate portion of a leaf (upper surface). From 
Winklers No. 2928. 
1595. CALAMUS TRACHYCOLEUS Becc. n. sp. 
Descrirrion.—Scandent, rather slender. Sheathed stem about 2 cm. in diameter. 
Leaf-sheaths gibbous above, very scabrid with innumerable, very small, rufous, 
ascendent, triangular-subulate spinules, having a lighter bulbous base; scattered among 
these small spines are a few others considerably larger, also ascendent or spreading, 
10-12 mm. long at most, which impress their form on the surface of the sheath, 
that otherwise is rusty pulverulent throughout. Lezves cirriferous, about 1:30 m. 
long in the pinniferous part; the cirrus slender, irregularly armed with single or 
more or less aggregated small claws; the  petiolar part is obsolete; rachis in its 
lower portion somewhat flattened and prickly on both surfaces, higher up thickish 
and obsoletely angular, sparingly clawed beneath; towards the end it has an 
obtuse salient angle above and is armed not very regularly with scattered or 
ternate claws below. Leaflets not very numerous, about 15 on each side (in one 
specimen), very inequidistant, and usually approximating in pairs on each side of 
the rachis, with long vacant spaces between the pairs; they are papyraceous, green 
on both surfaces, almost glossy above, dull beneath, narrowly lanceolate, equally 
tapering towards both ends, have the base acute, and are gradually acuminate 
above to a subulate bristly apex; they have 5-7 very slender costae, and are quite 
bare of bristles or spinules on both surfaces; transverse veinlets sharp, much 
interrupted and numerous; margins ciliate with small spreading spinules; the  inter- 
mediate leaflets are 30-35 cm. long, 28-32 mm. broad; the upper ones are gradually 
smaller, and a few of those near the base are narrower. Male spadiz . . . 
Female spadiz apparently elongate and flaccid only two partial inflorescences seen by 
me); primary spathes tubular, slightly enlarged above but closely sheathing, armed 
with small prickles along the central line on the outer side, flat or slightly concave, 
with sharp margins on their basal axial side, truncate at the mouths, and produced 
at one side into a sharp triangular point; partial inflorescences 50 cm. long, 
inserted above the mouths of their respective spathes with a conspicuous axillary 
callus; they carry about 10 spikelets on each side; secondary spathes smooth, similar 
to the primary, but considerably smaller (2-2°5 cm. long); spikelets inserted above 
the mouths of their respective spathes and kept deflexed by an axillary callus: the 
lower ones and largest 6—7 cm. long, bearing 10-12 rather distant flowers; the upper 
spikelets are gradually smaller but not considerably: they are  vermicular with the 
axis 2 mm. in diameter and have the spathels infundibuliform, truncate, deciduously 
ciliate at their mouths, and produced at one side into a minute point; involucro- 
phorum concave, laterally adnate to the base of the spathel above its own; involucre 
slightly protruding beyond the involucrophorum, very shallowly eupular, with a 
conspicuous callous tubercle in the centre; areola of the neuter flower lunate, sharply 
edged. Fruit ovoid-elliptical, distinctly beaked, 11-13 mm. long (not including the 
perianth), 8 mm. broad; scales arranged in i5 longitudinal series, glossy, of a light 
straw colour, narrowly edged with reddish-brown, convex, narrowly and deeply » 
