110 ANNALS OP THE ROYAL BOTANIC GARDEN, CALOUTTA.
approximate, 4 mm. long fiowera each side. Fruit ovoid, stoutly beaked. Scales
in 18-20 series.
Java.
157. C. erioacanthus Becc.—Scandent, slender. Leaf-sheaths 7-12 mm. in diam.,
densely covered with flat, 1 cm. long spines, which are fi-inged-furfm-aceous on the
margins. Leaves 40-70 cm. long in the pinniferous part; the cirrus about as loug;
petiole 6-14 em. long. Leaflets 13-14 in all, gi-ouped in 4 remote fasciclos, greeu
and subconcolorous on both surfaces, lanceolate or oblanceolate, suddenly mucronate,
almost flat or slightly concave-convex, 18-25 cm. long, 2'5—5 cm. broad, rather
sharply 3-costulate; the costce and margins quite smooth.
Borneo.
758. C. óptimas Becc.—Slender, scandent. Leaf-sheaths armed with robust, large,
laminar spines. Leaves 70-80 cm. long in the pinniferous paxt, the cirrus up to
1 m. ill length; petiole 6-12 cm. long. Leaflets 6-8 in all, solitary and very
distant on each side of the rachis, oblanceolate or oblong-lanceolate or aubapathulate,
somewhat concave-convex, the largest 32-35 em. long, 5-5-6 cm. broad, green
above, whitish or mealy underneath, with 4-6 slender but sharp costfe, which are
smooth on both surfaces; margins spinuloue.
Borneo.
755. C. ccesius Becc.—Scaudent, slender. Leaf-sheaths 13-18 mm. in diam.,
armed with strong, flat, subulate spines. Leaves 60-30 cm. long in the pinniferous
p a r t ; the cii-rus about 1 m. long; petiole almost obsolete. Leaflets 16-24 in all,
very irregularly set, usually paired, the pairs 15-20 cm. apart on each side of the
rachis, more or less concave-convex, oblong-lanceolate, green above, conspicuously
mealy-glaucous beneath, with 4-5 quite smooth costaj; margins spinulous. Female
partial inflorescences 50 and more cm. long, with about 6 spikelets on each side;
these vermicular, spreading, 10-12 cm. long, with 10-12 flowers on each side. Fruiting
perianth pedicelliform. Fruit ellipsoid-ovoid, narrowly beaked, 18 mm. long,
12 mm. broad. Scales in 18 series, deeply and narrowly channelled. Seed ovoid,
minutely pitted; albumen not very deeply ruminate; embryo lateral near the base.
Borneo and the Malayan Peninsula.
160. C. simp/ex Becc.—Scandent, rather slender. Leaf-sheaths 1-2 cm. in diam.
Leaves 0-8-1-5 m. long in the pinniferous part; the cirrus; long and slender; the
petiole 15-20 cm. long. Leaflets about 10 in all, solitary and very distant on each
side of the rachis, lanceolate or elliptic-lanceolate, up to 60 era. long, 10 cm. broad,
5-6-costate; coatfe and margins quite smooth. Mala and female spadiees very much the
same, elongate, shorter than the leaves, very simple, with very few spikelets on each
side of the main axis. 3Iale spikelets spreading, arched, 12-13 cm. long, with 15-10
rather remote ilatly bifarious flowers on each side. Female spikelets spreading,
arched, 6-7 em. long with 10-12 flowers in all, which are airanged in two slightly
assurgent series. Fruiting psrianth pedicelliform. Fruit globose-ovoid, large, about
3 cm. long, 2 cm. bxoad. Scales in 24 series, slightly channelled. Seed globular,
minutely pitted; albumen very deeply ruminate; embryo almost basilar.
The Malayan Peninsula.
BEOOAEr. MONOGRAPH OF THE GENUS CALAMUS. m
m. 0. Doriwi Becc.—Apparently lather large and aoandent. Female ipadi'e
•with rigid, arched, partial inflorescences, which terminate in a slender barely sninu.
louB taiUike appendis; spikelets spreading, cllons at their axilla, arched,
'sinnons, np to 6 cm. long, with 7-9 horimntal Sowers on oach side.
penmth depressedly vontricose. Fruit elongate-ellipsoid, stoatly Ijoakcd, 33-35
mm. long, 11-12 mm. broad. Scales in 21 series, narrowly and deeply channelled.
Setd oblong-Bubcylindraceons, pitted; albamen superficially rnminato; embryo snbbasilar.
Bm-ma.
162. 0. polyUesmus Becc.—Scandent, apparently rather robust. LeaJliU very
distinctly grouped in fascicles of 3-3 on each side of the rachis, linear-lanceolate, acuminate,
20-22 cm. long, 18-25 mm. broad, sub-5-oostulate, the costa) quite smooth
on both surfaces; margins spinulous-serrukte. FemaU ifikeUb spreading, oaHous at
their axilla, about 10 cm. long with 9 dislichous flowers on each side, otherwise
Tery snmlar to those of C. Dericei. FruUing perianth cylindraceous.
Burma.
163. 0. Masianus Becc.-High, scandent and very robust. L,af.,I„atb 6 cm. in
dmm., armed with very large laminar spines. Lea,« very large; petiole very short.
Leallet, numerous, 3-4 approximate on each side of the raohis, with Ion., vacant spaces
mtorposed, lanceolate-ensiform, 10-50 cm. long, 3-5-3-.5 om. broad, S-S-costulate, the
cost» almost smooth on both surfaces or spariugly spinulous above; margins spindous.
Fmml. .fad,^ diffuse, 1-2-1-6 m. long, with many partial inflorescences, which are
arched and spreading w.th a distinct callus at their axilla; spikelets zig-z.g sinuous,
up to 30 cm. long, w.th 15-16 flower, on each side; spathels asymmetrically infuiidibnliform.
Frmltng perm.th cylindraceous. Fruit almost Bphasric, 26-^7 mm long
Scales m IS series, deeply chanuelled. Seed globular, coarsely pitted; albumen
superficially ruminate; embryo basal.
North-East India.
164. 0. nambariensis Eecc.-Scandent, rathor robust. Lea/shealM 3-4 cm in
diam., ar-med with large, bread, subseriate, horizontal or deflexcd spines intermingled
with smaller ascendent ones. Leave, 3 mm. long in the pinniferous part; petiole very
short Lcajlets very spreading, remotely subequMistant, lanceolate-ensiform, as much
as 60 cm long, 4 cm. broad, with 3 or sometimes 5 slender ,„ite smooth ccsta,;
margais obsoletely spinulous. Mak spadi^e simply decompcund or partially supradecoinpouad;
spikelets callous at their axifla, spreading or deflexcd, 3-4 cm Imig
with 14-18 very approximate, 3 mm. Icng, flowers on each side; spathels very closely
packed, concave, ovate, bracteifom. Fruit apparently similar to tl-.at of C. l,lu«ian,L
but more ovoid and with scales in 21 series.
North-liast India.
^ 165. 0. inermis J. A n d e r . - H i g h scandent and robust. Leaf-skalh 5-6 em
m diam., quite smooth. Leaves about 3 m. long in the piuniferous part; the cirruj
2 m. long, very robust and very powerfully clawed; petiole short, smooth. Leaflets
numerous, inequidistont, in pair, on each side of the rachis, 3-9-costaIate, the lower
ones ensJorm, 40-50 om. long, 3-4 om. broad, the others shorter and broader, lanceolate,
as much as 6 cm. in width; the cost., smooth on both surfaces; margins
t j . ,
s i '