7 8 ANNALS OP THE ROYAL BOTANIC GARDEN, CALCUTTA.
C. jauensis var, aciculans Becc.—Very slender. Leaf-sheaths with short ot rather
long, straight spines. Leaves short with only 2 pairs of leaflets which are approximate
t o the terminal pair; the basal pair transformed iuto two opposite, long, acicular
spincd. Fe^nale spadix shorter <han the leaves.—Perhaps a distinct species.
Boi-neo.
32. C. filiformis Becc.—^Excassively slender. Sheathed stem 3-5 mm. in diam.;
naked canes Bometimes not more than 3 mm. in diani. Leaf-sheatJis smooth, or with
very few hooked prickles. Leaves very delicate, 2.5-40 cm. long; the petiole
very short. Leaflets 5-6 on each side, somewhat inequidistant, very narrowly lanceolate,
8-12 mm, long, 8—14 mm. broad, those of the terminal paii' very highly connate.
Male spadix filiform, very slender; partial inflorescences reduced to one spikelet.
Mountains of Borneo.
33- G. corrugatus Becc.—SJieathed stem 4-5 mm. in diam. Leaf-sheaths not
prickly, but marked by many, approximate, pi'ominenfc and annular ridges. Leaves
30-35 cm. long; petiole very short. Leaflets very few, 5 on eacli side, perfectly
opposite and forming remote pairs, elliptic-lanceolatd, 3-co8tulate, 12-13 cm. long,
2'5 cm. broad; those of the terminal pair united to about the middle.
Borneo.
84. 0. papuanus Becc,—Very slender. Sheathed stem 6-8 mai. in diam. Leafsheaths
sprinkled with very small ascending, tuberculiform prickles. about
30 cm long); the petiole about 2 cm. long. Leaflets few, 6 - 7 on each side, clustered
in about 4 remote fascicles of 3-4 each, spreading, elliptic-lanceolate or broadly
oblacceolate, suddenly subulately acuminate, 5-costulate, quite naked on both surfaces
and at the margins, those of the terminal pair connate to about the middle.
New Guinea.
35. C. filipendulus Bccc.—Sheathed stem 1-1'5 cm. in diam. Leaf-sheatlts armed
with short, or 5-10 mm. long or subtuberculiform, scattered or], slightly confluent
spines. Leaves 'o-1 m. long; the petiole short or long. -Zea/c^s"" v e i y ' f e w , j5-8 in
all, elongate oblong, 25-40 cm. long. 5-10 cm. broad, 5-9-costate, ' naked 'on both
sm-faces, those of the terminal paii- confluent by tlreir bases. Male and female spadiees
similar, simply decompound, filiform, very long (1-1'8 m.). Fmit small, about ¿12
mm. long, broadly conical-ovate.
Malayan Peninsula.
36. C- gomspermus Becc.—Sheathed stem about 15 mm. in diam. Leaf-shcaths
• armed with straight, spreading spines. Leaves about 50 cm. long, the petiole
short. Leaflets very few, 6 in all, oblong or spathulate-oblong, 20-22 cm. long, 4-5-5'5
cm. broad, 5-costate, quite naked on both surfaces, those of the terminal pair
about as largo as the side ones, highly connatc. Female spadix with a comparatively
l i g id and stout asis and with abbreviate, densely flowered partial inflorescences. Fruit
BECCARI. MONOGRArH OF THE GENUS CALAMUS. 79
20-23 mm. long, blackish, shining, globose, ventricose and conically acute. Seed
angular.
Borneo.
87. G. fioribundus Grifl,—Not very highly scandent. Sheathed stem 9.-2'5 cm.
in diam. or smaller. Leaf-sheaths densely armed with very unequal, short and long
subulate spines. Oerea densely bristly-iiisirid. Leaves comparatively short (-6-1 m.);
the petiole rather long and robust, ai-med with straight, often long spines; raclvis
irregularly armed with a few, strong and long, solitary, suddenly deflexed spines.
fleti few, 6-10 on each side at most, very inequidistant, more or less approximate
in groups of 2-3 on each side, narrowly lanceolate, 3.sub-5-C08tnlate, the co.sta2
(3 or 5) bristly spiimlous above, beneath the mid-costa and the side costaj occasionally
bristly, the two terminal leaflets larger than tlie others, highly connate. Male spadix
ultra-decompound, elongate. Female spadix simply decompound with few partial
inflorescences; primaiy spathes elongate, tubular, closely sheathing, often longitudinally
split and open in theii- terminal portion on the ventral side. Fiuiting perianth
explanate. Fruit subsphasric, 9-10 mm. in diam.
North-East India.
G. fioribundus var. depauperatus Becc.—Subscandent, small and delicate.
stem 5-6 mm. in diam. Ocrca densely hispid. Leaves small, with very few
( 6 - 8 in all); petiole and rachis armed only with very small scattered claws.
Assam: North-East India.
88. C. interruptus Becc.—Scandent. Sheathed stem 15-20 mm. in diam. Leafshcaths
gradually passing into the petiole, armed with a few strong, scattered, broadbased
15-20 mm, long, straight and .subulate spines. Leaves 1'5 m. long; the petiole
rather long, deeply channelled above. Leaflets about 15 on each side in 4-5 distant
fascicles of 2-3 on each side, narrowly lanccolate, 25-35 cm. long, 2'5-3 cm. broad
unicostate with 2-3 secondary nerves on each side of the mid-costa, smooth also
at the margins, those of the terminal pair somewhat shorter than the others and
rather highly comiate.
N. W. New Giiinea.
C. interruptus var. docilis Becc.—Lmfsheaths totally unarmed.
N. W. New Guinea.
39. C. dioicus Lour.—Scandent, very slender. Sheathed stem 4-5 mm. in diam.
Leaf-sheaths hispid near the mouth, densely beset with very unequal, slender, straight
spines. Lravcs short, 25—40 cm. long; the petiole almost obsolete. Leaflets very
inequidistant, more or less distinctly grouped, 8-11 in all, of which 4 are much
approximate at the apex and 4 at the base, linear-lanceolate, 10-20 cm. long,
11-15 mm. broad, with 3 and sometimes 2 additional slender costce, all bristly
above, naked beneath; the two terminal leaflets free at the base. Female spadix very
sleuder, filiform. Fruiting perianth shortly but distinctly pedicelliform. Fruit globulai'
9 mm. long, 8-8'5 mm. broad, with a small cylindric beak.
Cochin-China,