1 8 4 ANLI^ALS OF THE EOTAL BOTANIC GARDEN, CILCUTTA. [¿J. COLLAHFERUS
and toroiioatiug in a i-atlier long and slender cirrus; petiole elongate (iO cm. in one
specimeu), slightly flattened-biconvex with obtuoe clawed edges in its upper part, the
edges near the base acute and powerfully armed with very long, spreading spines,
very much iik.e those dcsci-ibed above, but often fascicled 2-3 together and divergent;
the under surface of the petiole is unarmed, the upper is sparingly and
minutely prickly; tho raehis on its upper surface has a smooth salient angle with flat
side-faces immediately from the iiisertion of the lowe?t leaflets; beneath it is armed
with fernata claws whicli become smaller and regularly half-whorled on the cirrus.
Leaflets rather numerous, about 40 in dl, very inequidistant, more or less distinctly
aggregated into 5-6 groups, all in one plane (not pointing different ways; and 2-3
cm. apart in each gi-onp, the groups of one side alternating with those of the
opposite side, and therefore with not very long vncant spaces interposed; they are
thinly papyraceous, green, slightly paler beneath, liuear, narrow and long, the lower
leaflets being the largest (3o-40 cm. long, 10-15 mm. broad), the upper a good deal
shorter but not narrower, all very gradually acumioate to a subulate—and at the
apex—bristly tip; on the upper surface the mid-costa is acute and glabrous oi' has a
straggling spinule near tho apex; the secondary nerves are slender and all smoothj
on the under surface o nerves are finely bristly hut the mid-costa has tiie bristles
closer than the others; transverse veinlets rather sharp and numeroas, much intercupt
e d ; margins very miiiutely spinulous. Male spadiz erect, strict, panicled-cupressiform,
about 50 cm. long and with 6-7 partial inflorescences dn one specimen) supported by a
strongly flattened unarmed pedicellar part; primary spathes thin, membranous, deciduous,
exsuccous; secondary and tertiai-y spathes very shortly infuudibuliforra or subbracteiform,
producod at one side into a triangular, acuminate, exsuccous and usually
lacerated point; partial infloresceaces small and with few branchlets, the latter short
(3-5 cm. long) with 13-4 spikelets on each side; spikelets spreading, 10-20 mm. long,
quite flat, 8 mm. broad, of a ciunamon-brown colour when dry I with 10-15
closely packed, bifarious, horizontal flowers on eacih side; spathels very closely packed,
bracteiform, horizontal or slightly deflexed, broadly and shallowly cymbiform,
puberulous-furfuraceous; their apex produced at one side into a triangular point,
which protrudes beyond the involucre; the latter rather deeply cupular, obliquely
truncate and entii-o at the mouth, two-keeled on the posticous side, not callous in the
axilla. Male flowers terete, very slender, at times slightly arched, obtuse, 4 mm.
long, the calyx tubular, broadly 3-toothed, the corolla more than twice as long as
tlie calyx.
HABITAT.—Borneo. I collected this fine species in a sterile condition on Mount
Mattang near Kuching in Sarawak. (P. B. No. 1923.) Found again in tho same
place and with male flowers by J. Hewitt. (Herb. Kew. and Manila.) Malayan name
in Sarawak " Rotang
OBSERVATIOSS.—It is easOy distinguishable from the allied forms by the two large
membranous reversed collars immediately below the base of the petiole; by the
want of collars or rows of spiculae turned upwards; and by tho long needlelike,
straw-coloured spines around the mouth of the leaf-sheaths, and at the base of
the petiole. D. collariferus seems allied to D. genioulatus, more than to any other known
D. macrophyllus] BEOCAEI. THE SPECIES OF DAEUONOBPOS
species, by the long spines at the bnse of the petiole and by its flattened male
spikelets with closely packed bifarious flowers; but D. geniculahis has only partial
membraaous crests around the leaf-sheaths, not complete reversed collars '
PLATE 79.-Daemonorops collariferus Boca, ft represents the type specimen - P B
No. 1923 in Herb. Beccari. ^H P . r . o.
74. DAEMONOEOPS IIACA?0PHYLLUS Becc. in Hook f. i-]. Brit. Ind. vi, 470, and
in Eec. Bot. Surv. Ind. ii, 227.
DESCRIPTION.—Scandent, rather slender. Sheathed stem 16-18 mm. in diameter.
Leaf-sheaths cylindraceous, elongate, densely briscly-spinulous at the mouth, greenish"
apparently covered with a rusty cottony furfuraceous scurf while young, later glabrous
and almost polished, rather thin, easily splitting longitudinally, each furnished with
several complete, very approximate, spiculiferous collars, of which 3-4 are larger than
the others, and have a broad, reversed membranous part; below each of these lar^e
reversed collars is opposed a rudimentary one, arme.! with spiculae pointing upwards
which cross and interlace with those of the upper collar, thus forming 3-4 complete
ant-harbouring galleries around each sheath; all the spiculae are extremely slender
filiform or bristle-like, brittle, blackish or often discoloured. Leaves cirriferous with
only five opposed pairs of very large leaflets, the pairs on each side separated by a
long vacant space; petiole very long (60 cm..loQg, 7 mm. broad-, flattened-biconvex
with bluntish edges, armed at the base with a few, long, straight, deflexed spines
and higher up wl^h small claws; the rachis on the upper surface has an acute
smooth salient angle and flat side-faces which begin at the insertion of the lowest
leaflets; on the under surface the rachis is armed with 3-nate claws, which become
smaller on the slender cirrus, Leaflets papyraceous; elliptical-lanceolate, aimost equally
tapering to both ends, terminating in a triangular and at the sides bristly-spinulous
t i p : those of the lower pair are very large, 50 cm, long, 10-12 cm. üroad and
have T-8 slender but acuto costae, which are all of about the same strength,
and smooth on both surfaces; transverse veinlets numerous, approximate Ind
very sharp on boih surfaces; margins cxcessivelv minutely spinulous; the leaflets
of the upper pair do not differ from those of the lower one, only they are
smaller, 25 cm. long, 4-o-á cm. broad, and 3-costulate. Flowers Fruit
HABITAT,—The Malayan Peninsula in
Father Scorteckini (Herb. Beccari),
the District of I erak, collected
OBSERVATIOSS,—Of this Scortechini preserved only an entire leaf with a portion
of the sheatked stem, apparently detached from an adult, but not yet fertile
plant. If the characteristics given above aro specific and not transient or
variable structures, D. macrophyllus is easily distinguishable by its completely paired
and opposed criniferous collars, and by the very few large, paired, pluri-costulate
AMM. EOT. BOT. GARD., CALCDXTA, VOL. X I I .