208 ANNALS OP THE EOSTAL BOTANIC GAEDfiK, CALCUTTA. ¡ongispothus
t h e branchlets ia straight, rather slunder and a n g u l a r ; secoudary and tertiary spathes
v e r y thiuly membranous, exsuouous, reddish-browu, as are every appendicular part and
t h e flowers themselves; these spathes aro iufuiidibuliform and embrace the bases of
t h e brancblets and of the spikelets, and aro conspicuously produced on one aide i u to
a spreading, plicate, broadly triangular, acute point; they aro usually longitudinally
c l e f t on one or other aide; spikelets dpre^iding, callaus at their insertion, slightly
flexuose, eiplanate, the flowors being p e r f e c t l y flatly bifariouB ; t h e lowest spikelets are
(i-7 cm. Ling, and have 18-20 contiga-ms flowers on each s i d e ; spatliela a p p r o x i m a t e,
shortly and widely i n f u n d i b u l a r , horizontally truncate, glabrous, flutily reticulate and
s t r i a t e l y veined, their points obtuse and subtenJiug their respective flowers, f r e q u e n t ly
more or less l a c e r a t e d ; involucre entirely immersed within its spathes, verv obUquely
cupular, being produciid on the posticous side, whero acutely 2-keeIed,' the keels
f u r f u r a c e o u s or covered with small paleolae. Male Jloioers linear-oblong, obtuse,
s l i g h t l y curved, inserted at an angle of about 45», o mm, long, I'O mm. thick!
t h e calyx t u b u l a r - c y a t h i f o r m , with 3 short and broad teeth which have a tuft oi
f e r r u g i n c o u a paleolae oa their apex ; the corolla about twice as long as the calyx,
p a r t e d not quite down to the base into three linear segments so as to liave only a
Tery short tubular p a r t ; the stamens have the base of the filaments connate to the
undivided or tubular part of the corolla, are subulate in the free portion, and have
inflected apices; anthers versatile, linear, very n a r r o w ; r u d i m e n t a r y ovary formed by
t h r e e small linear, subulate bodies, about as long as the tubular part of the corolla.
FemaU spadix not very different from the male, but of very variable diraensiona ;
t h e panicle varies from 40 cm. to 1-2 m. in lengtn, and is borne on a peduncular
part about as l o n g ; this part is strongly flattened, 7-15 mm. broad according to
t h e size of the panicle, straight, slightly convex on one aide, and flattish on the
o t h e r , sharply two-edged, usually smooth on both surfaces, or exceptionally slightly
p r i c k l y ; its edges are armed with short, straight, solitary or sub-digitate spinesp
r i m a r y and secondary apathea aa in the male spadix, deciduous; the main'
axis rigid, obsoletely an^-ular; the internodes not swollen at the junctures, araooth
s u r f a c e d ; partial inflorescences callous at the axilla, 6-10 in number, besides
2 - 3 in the terminal part, where they are reduced to single spikeleta; the lowest
p a r t i a l inflorescences average from 2-5 to 30 cm. in lengtli, and have (3-7
spikelets on each aide, but occasionally are much smaller, and have fewer spikelets;
t h e largest spikelets are 10-12 cm. long, and have 12-15 distichous flowers on
each side; spathels thinly membranous, exsuccoue, very finely striately nerved,
at first furfuraceous, later glabrous, infundibular, produced externally into a triangular
acute point that subtends the flowers; involucrophorum immersed in its own spathel.
s p a t h a c e o u s - a u r i c u l i f o r m , acutely 2-keeled on the posticous aide; involucre
immersed within the involucrophorum, deeply asymmetrically cupular, being con-
«iderably more evolute on the side of the neuter iiower than on the other; the areola
of the neuter flower ovate, sharply defined by raised margins, which, like the
keels of the involucrophorum, are f r i n g e d with ferrugineous, later deciduous, paleolae.
Female Jiomrs oblong 5'5-6 mm. long; the calyx shortly campanulate, slightly
3 - t o o t h e d ; the teeth have a brush of ferruginous paleolae at thoir apex and are
v e r y soon split into 3 parts; the corolla is two aad-a-half or nearly three times as
l o n g aa the calyx, deeply parted into 3 lanceolate subacute segments; calyx and
corolla very finely striately veined externally; stigmas linear, during the anthesis
0. acamptostachys'] BECCARI. THB SPECIB8 OP DAEMONOliOPS. 209
s p r e a d i n g , or slightly recurved, peeping out between the segments. Neiiler flowen
v e r y .similar in size and shape to the males. Fruitimj perianih entirely explanato.
Fndi rather small, ovoid-elliptical, rounded at both ends, distinctly beaked, 15-16 mm.
long, 12 ram. broad; scales in l."» longitudinal series, glossy, strongly convex, deeply
grooved along the centre, of a uniform cinnamon-brown colour and with a very
narrow, scarious finely eroscly-tootlied edge. Seed ovoid, rounded at both ends,
sinuously grooved on the surface; chahizal fovea indistinct; albumen ruminate;
embryo basal.
T h e different parts of the spadices, the spathels, involui
u n i f o rm reddish cinnamon-brown colour.
a n d flowers are of
HABITAT.—Borneo: in Sarawak at Sibo near the sea-ahore, not far f r om the
mouth of the homtmymou-s river {Beovari P. J3. No. 2193), and in similar situations
at the mi>uth of the Bintulu {Bcscari F. B. No. 3697). Low has appended the
vernacular name of " l i o t a n g b i b u l o h " to a specimen of this plant preserved in the
Kew Herbarium and certainly collected in Borneo, but the exact locality is not
s t a t e d . From British North Borneo a f r u i t i n g specimen has been sent to Kew by
Governor Crvagh, It is cultivated in the Botanical Garden at Buitenzorg, forwarded
by Oxley,
OBSERVATIONS.—D. iongispathus in many respects approaches the species of
Calamus of the C. platyapathus group, especially as regards the structure, of the
p r i m a r y spatlies; its male and female spikelets are also exactly similar to those of a
Calamus, as they have well conformed infundibular spathes, and approximate flatlybifarious
flowers. The structure of the female flowers, however, is that of a typical
Daemonorops, and its relations to other species of this genua are not doubtful. It is
a very variable plant in regard to the dimensions of the spadices. 1 have derived
t h e description of the male plant from specimens cultivated at Buitenzorg. D.
longispathui is somewhat related to D. longipes, and even more to D. ruptUis, though
p e r f e c t l y distinct from these as from any other species known at present.
PLATE 94.—Daemonorope Iongispathus Beuc. Upper portion of a male spadix •
portion of a leaf from near its upper end (under s u r f a c e ) : from a plant cultivated
a t Buitenzorg (Herb. Becc.).
pLAi'E 95.—Daemonorops Iongispathus Becv. Intermediate portion of a leaf
(under surface); lower portion of a petiole; an entire female spadix in flower •
f r om P. B. No. 2193 in H e r b . Beccari. Spikelet with mature f r u i t s ; from Creagh's
specimen in Herb. Kew.
83. DABMONOBOPS ACAMPTOSTACHYS Becc. sp. n.
DE-SCKIPTION— LeaJ-sheaths . . . . . Leaves apparently
l a r g e ; in the amall portion seen by me the rachis is bifaced, and has an acute
smooth salient angle on the upper surface; it is armed beneath at intervals
of 0-6 cm. with digitate (3-5-nate), confluent, straight, light-coloured, rather
.slender, 5-8 mm. long, deflexed spines and also with a few, very small,
A.xM. KOT. BOT. D., CALCUTTA, VOL. X I I .