70 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA (D. angustifolius, 
spadices erect, sessile or nearly so, fusiform before flowering, almost gradually narrow- 
ing into a beak which is about as long as the body; outer spathe cymbiform, 
acutely two-keeled, rather firm, not very densely armed with flat, very thin and 
elastic, very short or even 1-3 cm, long, scattered or interruptedly seriate spines : 
those on the upper part of the spathe and at the base of the beak are erect and 
longer than elsewhere, and at the base shorter and spreading, and never have a 
distinctly callous base; the second and following spathes unarmed, or the second 
only with a few spines. Male spadiz, densely panicled, oblong-cupressiform, 17 cm. 
long, with 6 or 7 very approximate partial inflorescences (in one specimen); their 
axial parts slightly pulverulent-furfuraceous ; spikelets very short and few flowered, 
the largest (the lower ones), 15-18 mm. long with 4-5 flowers on each side; the 
axis of the spikelets not very strongly zig-zag sinuous with short and very minutely 
scabrid internodes ; spathes bracteiform, amplectent, extended at one side into a broadly 
triangular acute point, which reaches the margin of the involucre; involucre cupular, 
truncate, entire or obsoletely bi-dentate. Male flowers oblong, obtuse, 5 mm. long, 2 mm. 
thick ; the calyx campanulate-urceolate, being slightly constricted at the mouth, superfi- 
cially 3-toothed, strongly striately veined; the corolla twice as long as at the calyx. 
Female spadiz 13 cm, long on the whole (when without the spathes) and with 5 
partial inflorescences (in one specimen} which are composed of only 6-7 spikelets ; 
the largest spikelets (the lowest) 4 cm. long with 4-5 flowers on each side, and 
with the spaces between two flowers acutely angular and 2-4 mm, long; spathels 
bracteiform, amplectent, extended at one side into a broadly triangular acute limb, 
which is slightly shorter than the involucrophorum ; the latter very short (about 2 mm. 
long), distinctly callous at its axilla, obconical and expanded at its apex into 
an obliquely subcupular limb, which at one of its sides subtends the neuter flower ; 
involucre cupular, truncate, entire; areola of the neuter flower very distinct and 
tumescent on its upper margin. Female flowers ovate, 5 mm. long; the calyx 
urceolate-campanulate, very obsoletely 3-denticulate, very strongly striately veined ; 
the corolla almost twice as long as the calyx, its segments narrow, lanceolate, 
acute. Fruiting perianth explanate. Fruit rather small, 15-14 mm. in diameter (not 
quite mature), globose, slightly conically beaked; scales in 15 series, shining, 
slightly channelled along the centre, of a reddish-brown colour, more yellowish 
at the base, broadly bordered with a dark chestnut-brown line and slightly produced 
into an obtuse non-discoloured tip. Seed globular, very slightly broader than high. 
Hasrrat.—The Malayan Peninsula. This species was described by Grifith from 
specimens collected in the Province of Malacca. It has been found again at 
Singapore, for I consider as belonging to 0. angustifolius the specimen collected by 
Ridley in that island at Chan Chu Kang and distributed with the No. 4622 
(Herb. Kew.), at Selitan (No. 6279 in Herb, Becc.) and at Lawas (No. 5123 in Herb, 
Becc.) Griffith gives the Malayan name of “R, Ghitta”. This is also the name for 
D. trichrous. Ridley gives the name of “Rotang Spat”. 
OBSERYATIONS.—l have seen Griffith’s type-specimens of this in the Herbarium at 
Kew, and on this I have chiefly based the description of the leaves; but for the 
spadices, flowers and fruit I have made use of Ridley's specimens. 
