
72 ANNALS OP THE ROYAL BOT.iNIC GARDEN, C.\i,CUTTA.
8. 0. ¡eptospadix Griff.—Slender. Lca/sheuths densely and irregularly armed with
straight, subulate spines. Leaves, 6-1 m. long. Leajlets numerous, approximate, very
regularly equidistant, linear-ensiform, 20-30 cm. long, 3-costatc. Male aud female
s/iadices simply decompound and similar, excessively long and slender; pariial inflorescences
not many, very distant, strict, slender, 30-40 cm. long mth 10-20 appressed
spikeleta on each side ; frimary spatkes very narrow, very long, cylindrical, closely
sheathing. Male spikeleta scorpioid, 1-2 cm. long, issuing erect from the auriculiform
limb of their respective epathes. Fruit globose or globose-ovoid, about 10
mm. in diam.
N. E. India.
9. C. dilaceratus Becc.—Female spadix erect, paniculate; primary spathes short,
membranous, exsuccous, lacerate, armed with fine black spicules; secondary spaihes
tubular-infandibuliform and—like the spathels—essuccous, thin in texture and much
lacerate; femaU s pikelets with a pedicellar portion 1-1-5 cm. long. FnUiing perianth
divided into six spreading, equal, lanceolate parts. Fruit small, ovate, 12 mm. long.
Seed subglobose, its surface even (not pitted).
Nicohar Islands.
10. C. castaneus Griff.—^¿«m erect, 1-1'5 m. high. Leaves with the petiole
fiattish above and rounded beneath. Leaflets numerous, broadly ensiform, 4-5-5 cm.
broad, green on both surfaces, slightly paler beneath ; mid-costa biistly spinulose on
both surfaces; secondary nerves always smooth. Female spadix short and broad;
secondary spathes elongate-infundibuliform with an auriculiform limb, loosely sheathing,
ultimately decayed but not fibrous in their upper part; spikelets provided with a
pedicellar part 1-5-2 cm. in length. Fruit rather large, 22-24 mm. long, broadly
ovoid or obovatp, distinctly beaked, of an uniform chestnut-brown colour ; scales in
24-27 longitudinal series. The different parts of the plant armed only with straiglit,
never with clawed piickles.
Malayan Peninsula.
77. C. Griffithianus Mart.—Stem creepiug at first, then ascending erect. Leaves
with a very long subterete petiole. Leaflets numerous, in alternate groups on each
side of the rachis, equidi-stant in each group, elongate-ensiforra, 15-35 mm. broad,
green above, pulverulent or slightly mealy-violaceous underneath when young, later
green, with bristles on 3 nerves on the lower surface aud only on the mid-costa near
the apex on the upper. Spadices rather short; spathes tubular-auriculiform
and ultimately decayed but not fibrous in their upper part; spikelets provided with
a long pedicellar part and inserted at the base of their respective spathes. Fruit subglobose
obovato, very suddenly and conspicuously beaked, of an uniform chestnutbrown
colour; scales in 18-24 series. The different parts of the plant armed only
with straight, never with clawed prickle-s.
Malayan Peninsula.
12. C. Burckianus hecc.—Leaves with a long, terete, compressed petiole. Leaflets
numerous, equidistant, linear-ensiforra, distinctly 3-costulate ; secondary spatiies tubularjafundibuliform,
truncate, entire or at most longitudinally split, unarmed. Female
insei-ied at the base of their own spathes by a slender, 2-3 cm.
. BECCARI. MONOGRAPH OF THE GEXIIS CALAMUS. 73
long pedicellar part. Fniii globose, small, 10-12 mm. in diain., apiculate, of an uniform
brown colour. Seed with a smooth surface.
Java.
13. C. deerratus Mann & Wendl.—Shcathod stem 18-25 mm. in diam. Leaf-sheaths
more or less armed Avith straight laminar spines. Qavea 4-o cm. long, membranous,
sjDinous like the sheath, ultimately marcescent. Leaves about 1 m, long ; petiole
short. Leaflet" rather numerous, subequidistant, linear-lanceolate or lanceolatc-ensiform.
Male and female spadices simply decompound with very few erect strict partial
inflorescences. Male spikelets 4-5 cm, 'long. Femile spikelets slightly larger than the
male ones. Fruit ovoid, conically narrowing towards the apex, 15—17 mm. long; scales
21 series.
West Tropical Africa: Bagroo and Cameroons Rivers.
14. C. Barterii Becc.—Stem very slender. Leafsheatlis striate, unai-med. Ocrea
12-15 mm. long, bilobed, bristly spinulose externally at the apex and at the margins.
Leaves 45-50 cm. long; the petiole 6-8 cm.; rachis slender, filiform. Leaflets few,
9-10 on each side spreading or almost horizontal, grouped in rather distaut fascicles
of 2-4 on each side, thin in texture, linear-lanceolat3, the two of the terminal pair
opposite, free at the base.
W. Tropical Africa : River Niger.
15. G. Heudelota Becc.—Sheathed szem about 1 cm. in diam. Leaf-sheaths ai-med
with very small semi-conical spines. Ocrea 2 cm. long, obliquely cut like the mouth of
a beaked flute and externally ornamented with closely seriate comb-like spines. Leaves
about 60-70 cm. long, petiole 7-8 cm. long. Leajlets about 18-20 on each side,
irregularly approximate with short and long vacant spaces iaturposed, linear-lanceolate
or lancGolate-ensiform, smooth beneath or with a few vory small spinuks only along
the mid-costa; the upper surface with the mid-cosla spinulose and the sido nerves
naked or sparingly spinulose. Female spadix with the axial parts between two
inflorescences strongly clawed. Partial inflorcsecnees small with few aichcd and deflexed
spikelets. Fruit ovoid conically beaked, 15 mm, long, 9 mm. broad; scales in 15-16
series.
West Tropical Africa: Senegambia, Gambia.
16- C. falabensh Becc.—Apparently slender. Leaflets inequidistant, inserted at a
rather acute angle, with vacant spaces variable from 2-7 cm., papyraceous, rather
rigid, vory narrowly lanceolate, the largest about 20 cm. long, 19-20 mm. broad, with
3 bristly spinulous nerves beneath and the mid-costa only bristly'spinulous above. Male
epadix elongate flagelliforni. Partial inflorescences lax, rather large with many spreading
elongate arched spikelets on each side. Male flowers falcate, very acutc.
West Tropical Africa : Sierra Luone.
17. 0. Leprieurii Becc.— Leaves short, 35-10 cm. long; the petiole 7-10 cm. long.
Leaflets ratlier many and approximate, more or less inequidistant or interruptedly
equidistant, 15 mm. apart, naii'owly lanceolate, 15-17 cm, long, 15 mm. broad and
often with a snjall spinule at their base in the upper surface next to the axis;
secondary nerves smooth. Male spadix elongate with a long clawed flagellum at its
apex; the largest partial inflorescences 30 cm. long with 7-8 spreading sjúkelcts on
ANN. E O Ï . BOT. GART>. CALCUTTA. VOL. X I .