218 ANNALS OF THE BOYAL BOTANIC GARDEN, CALOUTTA, [D. Hallierianus 
distinctly 3-costulate on the upper surface with short, rigid bristles on the 3 costae, but 
especially on the side ones and at times another secondary nerve also bristly; 
on the lower surface the  mid-costa alone bears rather long bristles; the margins 
are very minutely sp‘nulous-serrulate; transverse veinlets very short ‘and irregular. 
Male spadiz.... Female spadiz erect, attached about midway of the exposed part of 
the leaf-sheath, or at least not very near its mouth, and borne on a short 
(2-3 em. long), rather thick, densely prickly, pedicellar part; primary spathes.... 3 
the fruitiug panicle is broadly ovoid, about 20 cm. in length, very dense and composed 
of 4-5 very approximate partial inflorescences; the first or basal internode is also 
short, 1:5-2 em. long, thick and rigid; the partial inflorescences have several very 
approximate spikelets; secondary and tertiary spathes annular and produced at 
one side into a short concave, bracteiform, triangular, acute limb; spikelets 3-6 
em, long, the largest have 4-5 flowers on each side; their axes are rather slender 
and sinuous; spathels similar to tbe tertiary spathes; the involucrophorum is 
callous at its axilla and has a  pedicellar part which 1s 2-3 mm. long, angular, 
narrow's towards the base, and is expanded at its upper end into a bracteiform, 
concave, asymmetric, and at one side acute limb; involucre rather deeply cupular, 
often asymmetrically evolute, apiculate at one side, otherwise entire; areola of the 
neuter flower depressed, distinctly marked above by a swollen crescent-shaped callus. 
Fruiting pertanth almost explanate; the fruit however is rendered distinctly pedi- 
cellate by the involuere. Fruit (quite mature) elliptical-ovoid, abruptly terminated 
by a stout beak, 15-16 mm. long (including the heak) and 11 mm. broad; the 
beak alone is 4 mm. long and 3 mm. broad; scales arranged in 15 longitudinal 
series, almost glossy, very slightly convex and very superficially or indistinctly 
grooved along the centre, of a reddish brown colour and with a narrow, light- 
eoloured scarious, erosely toothed margin, the apex slightly produced, dark and 
bluntish. Seed globose-ovoid or slightly longer than broad, 9:5 mm. lonz, 8°5 mm. 
broad, 8 mm. thick, almost equally convex on both sides (not ventricose on the 
raphal side). 
HanrrAr,— N.-W. Dutch Borneo: at Smittouw in the Residency of Sambas 
(H. Hallier No. 1310 in Herb. Hort. Bot. Bogor.). 
OnsERVATIONS.—]t is related to D. angustifolius, D. trichrous and D. fissus, but 
it is distinguishable by its small ovoid fruit, abruptly surmounted by a stout beak, 
more conspicuous by far than that of any other fruit of the allied Species; also 
good diagnostic characteristics of D. pachyrostris are the fruit scales, very slightly 
convex, and only obsoletely grooved along the centre, and the regularly globose. 
ovoid seed, not more ventricose on the raphal than on the opposite side. 
Prate 98.—Daemonorops pachyrostris Bece. Hallier's type specimen No, 1310 
in Herb. Hort. Bot. Bog. 
20bís. (86) Darmonorors HarLrERIANUS Becc. sp. n. 
Description.—Apparently scandent and rather slender. Sheathed stem about 2 em. 
in diameter. Lea/-sheaths more or less distinctly pluri-costulate longitudinally, covered 
