9i AJTNALS OF THE EOYAL BOTANIC GAEDEN, CALCUTTA.
numerous, narrow, equidistant, subtricostate, coneolorous on botJi surfacas. Mala
and female spadices flagelliform, up to 2—3 m. in length, with many remote pai-tial
inflorescences; primary spathes split longitudinally and then open, flat, broadly
linear, longer than their respective partial infloresceuce. Fmiting penanth shortly
pedicelHform. Fruit very small, pisiform, 7 mm. in diam.
N. E. India.
94. Calamus nitidus Mart.—Slender. Leaves 60-70 cm. long. Leaflets lanceolate,
closely equidistant, concolorous, on the upper surface the mid-costa and two
slender nerves on each side of it bristly, beneath the mid-eosta only spinulous.
Male and female spadices very slender with many partial inflorescences and a
'iery slender flagellum at their summit; primary spathes open and flat during
the anthesis, broadly linear, somewhat longer than the inflorescences. Fruiting penanth
shortly pedicelliform. Fruit very small.
Tenasserim.
95. C. platyspathus Mart.—Slender, scandent. Leaf-sheaths armed with subulate
spines. Leaves short. Leaflets few, inequidistant, very remote, elongate-lanceolate,
25-30 cm. long, 20-30 mm. broad, with -o-e rather acute cost®, of which the
central naked and the others occasionally spinulous; the lower surface slightly mealy
or pulverulent. Male spadix elongate, very slender, filiform, with few remote
panicled partial inflorescences; primary spathes about as long as their respective
inflorescence, open, flat, laminar, oblong, obtuse or subtruneato at the summit : the
lowest (in one specimen) 10 cm. long, 1-3 mm. broad. Male flowers siibterete,
narrow.
Tenasserim.
90. 0. myrianthllS Becc.—Apparently scandent and of moderate size. Leaves
apparently rather large. Leaflets large, elliptic-lanceolatc, many-costate, 40-42 cm.
long, 4-5 cm. broad, naked on both surfaces or very sparingly spinulous on the
main costaj, green above, mealy-whitish beneath, Male spadtx elongate, slender,
wilh many remote p.inicleii-pyramidate, 15-20 cm. long partial inflorescences;
primary spathes apparently very narrow, elongate, lacerate; spikelets very delicate
and small, the largest, 1^-1-5 mm. long with 8-10 very small trigonous acuminate
flowers on each side.
Tenasserim.
97. C- hypoleucus Kurz,—Apparently slender. Sheathed stem 7-8 mm. in diam.
Leaf-sheaths armed with unequal, broad-based, subulate spines. Ocrea short, membranous,
truncate. Leaves short (in one specimen 45 cm. long); petiole short; leaflets
flaccid, papyraceous, few, very distinctly grouped with long vacant spaces interposed,
elliptic or oblong lanceolate, 15-16 cm. long, cm. broad, green above and
white beneatli, with 7-9 slender costas, these naked on both surfaces. Female spadix
very short and compact (15 cm. long in one specimen); primary spathes concavecymbiform,
elliptic, thinly papyraceous and exsuccous, imbricate, and similar to those
of a Dcemonorops sect. Cyvibospatha; pai-tial inflorescences small, shorter than their
respective spathes; spikelets veay small, the largest 12-15 mm. long, few-flowered
and mth a strongly zig-zag sinuous, slender axis; flowers 2 mm. long, ovate acutc.
Burma.
BECCAEI. MOIfOGEAPH OP THE GENTJS CALAMUS. 95
98. C. leucotes Becc.—Apparently scandent. Sheathed stem 2 cm. in diam.
Leaf-sheaths very densely amed with vei-y ineqnal, small and large, ascendcnt spines.
Ocrea short. Leaves rather robust and large; petiole robust and long. Leaflets few,
grouped, with very long vacant spaces interposed, firmly papyraceous, lanceolate or
eliipfic-lanceolate, up to 40 cm. long and 5*5 cm. broad, plicate many costate, green
above, covered witlr a crustaceous chalky coating bejieath. Male spadix rather
elongate, rigid, with a rather robiist axis; partial inflorescences strict, cupressifoirm,
much shorter than the primary spathes, these elongate, open, flat; male flowers
3 mm. long, acute.
Burma.
99- C. trauancoricus Bcdd.—Scandent. Sheathed stem 7-10 mm. in diam.
Leaj-shealhs armed with slender, sometimes' bristly spines. Leaves 40-50 cm. long;
petiole 5-7 cm. long, rachis armed with slender claws. Leaflets nan-owly oblanceolate,
15-18 cm. long, 10-15 mm. broad, finely 3-sub-5-costulate, 20-30 in all,
distinctly approximate in fascicles of 3-5 on each side, all in one plane, and not
pointing in difEerent directions, the groups of one side opposite with those of the
other side and 3-10 cm. apart. Spadices slender, elongate, with a slender aculeolate
flagellum at their summit; primary spathes elongate, longer than the small partial
inflorescences, enfolding these at first and then more or less bursting longitudinally.
Male spadii) ultradecompound ; spikelets very small (7-8 mm. long) and delicate, with
strongly zig-zag sinuous axis and 4-5 distichous flowers on each side. Fcmale-spadix
simply decompound; spikelets 12-15 mm. long at most, with 3-4 distant flowers
on each side; involucrophorura shortly pedicelliform. Fruit globose, ovoid,
mucronulate, 8-10 mm. long.
Lower India.
WO. C. Rheedei Griff.—Scandent and apparently of moderate size. Leaf-rachis
armed -with rather robust claws. Leaflets pointing in different directions, distinctly
approximate in pairs on each side, the pairs opposite and forming groups of 4,
with long vacant sjiaces interposed, narrowly lanceolate, unicostate. Frtiit ovoid
•or ellipsoid, about 2 cm. long, 12 mm. broad, shortly beaked.
Lower India.
101. 0. Hugelianus Mart.—Shezthed stem about 3 cm. in diam. Leaver large;
petiole stout, almost equally convex on both surfaces. Leaflets numerous equidistant,
uarrowly ensiform, up to 70 cm. long, subshiuing on both surfaces, with 3 distinct
and more or less bristly costic above, glabrous beneath or with a few bristles on
the mió-costa ; margins very distantly ciliolute-spinulous. Female spadix very long,
toimiuatiiig in an excessively long and robust clawed flagellum; primary
vory elongate and clo.-^oly sheathing, prickly all round in their upper part;
arched. Fijnale flowers 6 mm. long, pointing upwards. Fruit almost sphserio,
15-18 mm. in diam., vtry shortly beaked. Scahs in 21 series, black, shining,
not or very indistinctly channelled along the middle.
Lower India.