32 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. (C. laxissimus. 
erosely toothed) all round, narrowly and rather deeply grooved along the centre: 
their apices slightly produced, bluntish or subacute. Seed globular-ovoid, 9 mm. 
long, 7 mm. broad, with a pitted aud sinuously grooved surface; chalazal fovea 
small, shallow, uibilicate, central; albumen deeply ruminate; emoryo basal. 
Hasrrar.— The Philippines: Island of Mindanao, Todaya (Mt. Apo), District of 
Davao, at 1200 m. In dense humid forests south of the Sibulan River. Collected 
by 4. D. E. Elmer ia September 1909 (No. 11708). Native name 
“ Dalunban." 
OsseRVATIons.—It is apparently related to @. filispadiz, but is quite distinct by 
its woody leaf-sheaths very powerfully armed with black laminar, triangular spines 
and by the very elongate spadices, bearing several very elongate partial inflores- 
cences, of which those bearing fruits are very strict, or with the spikelets drawn 
together round the axis, and by the spherical fruits with a jibroad blunt black 
mucro. 
Super,  PrarE 16,—Calamus melanorhynchus Bece. Portion of the sheathed 
stem; partial inflorescence loaded with fruits; intermediate portion of a leaf. From 
Elmers No. 11708 in Herb. Beccari. 
55. CALAMUS NEMATOSPADIX Becc, 
This species has been collected again in Sarawak (probably by Hewitt) according 
to a specimen in the Herbarium at Kew, which exactly corresponds to the type, 
only the female spadix appears more robust than that represented in my plate 
71 of this volume. . 
To this species I refer a Calamus, preserved in the Buitenzorg Herbarium 
and collected: by Hallier in Dutch N. W. Borneo in the Residency of Sambas at 
Sangouw (No. 874) and at Sungei Sambas (No. 1038). It slightly differs from 
the type in the leaf-sheaths more densely armed with longer spines (at times as 
much as 15-20 mm. long); the spines of the newly exposed leaf-sheaths are fringed 
with furfuraceous scales on the edges, but become glabrous later; the leaflets are 
spinulous on 3 and at times 5 nerves underneath. The male spadices are 
extraordinarily slender and long, exactly as in plate 71 of this volume ; the partial 
inflorescences of the female spadix are 50-60 cm, long and have numerous 
deflexed spikelets which are in every respect exactly as in the type, 
55a. CALAMUS LAxissmmUs Ridley, Mat. Fl. Mal. Penin. ii, 210. 
DzscRIPTION.—A pparentiy scandent and slender. LLeaf-sheaths not seen by me, but 
probably flagelliferous. Leaves non-cirriferous; the upper part of one has the rachis 
trigonous in section, with & salient, not very sharp smooth angle above, flat and 
armed with solitary, sharp, short claws on the back; the leaflets apparently are not 
very numerous, are in rather distant pairs (about 5 cm. apart), the leaflets of one 
side being exactly opposite to those of the other side, with a distinct axillary callus 
at their insertion, spreading or even deflexed, very narrowly lanceolate or ensiform, 
gradually acuminate to a slender and at the sides bristly apex, thinly papyraceous 
but rather rigid, almost glossy on the upper and dull on the lower surface, otherwise 
