132 : ANNALS OF. THE ROYAL BOTANIC GARDEN, CALCUTTA, [C. Ulur. 
aggregated into a few scattered groups, each group 
leaflets, approximate (10-15 mm. apart) on each side 
vacant spaces interposed between them; the leaflets are 
very narrowly lanceolate, 3-sub-5-costulate with 2 of the 
margins; on the upper surface, 3 or at times 4 costulae 
surface the costulae are all smooth, or only 1-2 have 
veinlets short, interrupted, conspicuous on both Surfaces; margins very  minutely 
spinulous. Male-spadiz Female-spadiz very long, slender and flaccid: in one 
specimen it is 2-5 m. long and does not terminate in a clawed cirrus 
branched and has a very few (4) distant partial inflorescences ; 
thinly and partially rusty-furfuraceous, tubular, very elongate, closely fitting, and 
prickly in their lower parts, but much lacerated and fibrous from the middle 
upwards; the lowest spathe is rather flattened, two-edged, 10-12 
ensely armed with small, deflexed, aggregated spines, 
swollen tuberculiform bases; the succeeding primary spathes ara thinly and partially 
rusty-furfuraceous, tubular, closely fitting and from abont the middle upwards much, 
lacerated and fibrous; lower down they gradually pass into an elongate plano- or 
concavo-convex, slender, unarmed, very acutely edged axial part; partial inflores- 
cences simple, elongate, 50-60 cm. long, flabby, with their axes 
less flattened, as thick as a  pack-thread: 
being composed of 2-4 
of the rachis, with long 
papyraeeous, ensiform or 
costulae running near the 
are bristly; on the lower. 
a few spinules; transverse 
: it is simply 
primary spathes 
mm, broad, very 
which have confluent and 
slender, more of 
they carry distichally and alternately 8-9 
spikelets on each side; the secondary spathes are 7-8 cm. long: at first they com. 
pletely envelope the spikelets, then they are split open along the ventral side, and 
spread out into a narrowly lanceolate, acute, auriculiform, membranous, dry, marcescent 
often lacerated limb, which is very finely striate on both surfaces and is covered 
externally with a very thin, partly deciduous, ferruginous scurf ; spikelets inserted 
inside the tubular part of their respective spathes, and about one-third shorter than 
them, 4-5 em. long, thickish while bearing the flowers (7-8 mm. broad); they have 
4 series of 10-15 collateral assurgent and unilateral, very closely packed flowers, or 
which the two series in the centre are of female, and the outer ones of neuter 
flowers; spathels bracteiform, Very approximate, concave, produced at one side into 
a triangular acute point; involucrophorum dimidiately cupular, flat, two-keeled and 
bidentate on the side next to the axis, embracing the buse of the neuter flower to 
which it forms a small cupula; involucre cupular, often irregularly more or less 
lunately excavate and bidentate on the side of the neuter flower; areola of the 
neuter flower large, sharply edged and bidentate at the apex; spathels and involucre 
of a reddish brown colour, distinctly Striately-veined and fugaciously and not 
Copiously woolly in the young spikelets, Female flowers conical-ovoid ; 
very shortly 3-toothed, strongly striately veined. 
as the females ones. Fruit 
the calyx 
Neuter flowers about as large 
Hasitat.—S. W. Sumatra at Benkulen (Heyne in Buitenzorg Herbarium). Native 
name “Rotan Ulur.” 
OBSERVATIONS, — C. Ulur is very closely related to C. Semoi and at first 
seems hardly distinguishable from it, but on closer examination, 
several characters, especially by the lacerated primary spathes, 
elongate secondary spathes, which are on 
sight it 
it appears distinct by 
and by the far more 
e-third longer than their respective spikelets, 
