324 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [C. Diepenhorstii 
specimen it measured 5 metres, including a long terminal flagellum; in delicate 
individuals it attains 2-3 metres; partial inflorescences as in the male spadix very 
elongate, the largest with 5-7 distichous very remote horizontal or deflexed spikelets 
on each side; when the spadix is supra-decompound in the place of simple spikelets 
there are some branchlets bearing 4-5 small few-flowered spikelets on each side; 
common spikelets 4-12 cm. long, callous at their insertion, their axis rather rigid; 
subcylindraceous, flexuous, with 4-10 alternately distichous distant flowers on each 
side; spathels short, infundibuliform, truncate, acute or apiculate at one side; involu- 
crophorum almost entirely exsert from iis own spathel, obliquely attached to the 
base of the one above, cupular, rather deep, truncate, entire, involucre moulded 
on the involucrophorum and slightly exceeding this, rather deep, truncate, entire ; 
areola of the neuter flower almost circular, concave and rather deep, sharply bordered. 
female flowers inserted at a wide angle or subhorizontal, ovate, obtuse, 3 mm, long ; 
the calyx shortly 3-toothed, thick and callous at the base; the corolla divided almost 
to the base into 3 half-ovate acute segments; stamens forming by their connate. 
base an urceolum which is crowned by 6 very short teeth; anthers ovate, acute. 
Neuter flowers smaller than the female ones, speedily deciduous. Fruiting perianth with 
the calyx callous at its base, more or less irregularly split and nevertheless forming 
a short pedicel to the fruit. rwit, when full grown and perfectly ripe, round, 
16-18 mm. in diam., shortly mucronulate; scales in 18-24 series, rhomboid, broader 
than long, slightly lengthened into an obtuse apex, superficially channelled along the 
middle, rather opaque, light yellowish with a very narrow darker intramarginal line. 
and very narrow hyaline finely erosely toothed margins. Seed globular, 10-12 mm. 
in diam., deeply pitted on the surface; albumen deeply ruminate; embryo basal. 
Hasrrat.—Sumatra: west coast in the Prov. of Priaman, Diepenhorst fide Miquel ; 
in the Prov. of Padang at Sungei-bulu, Beccari P. S. No. 907. The Malayan 
Peninsula: on the Gunong Tambang Batak near Perak, at 1000-1300 met. 
Scortechini No. 647° in Herb. Bece.; in the same district on Gunong Malacca, Herb.: 
Cale. No. 7201 and Ridley No. 9815; at Pankor (male plant) Ridley No. 7898 
and at Lumut Dending, Ridley No. 10241; in Selangore at Genting Bedai, Ridley 
No. 7892; Pinang, at Muka Head, Curtis No. 765 in Herb. Kew. : Borneo ?, Lobb 
No. 9 in Herb. Cale.. | 
Malay name *'Rignon" (Seortechini); “ Rotang Chichi” (Ridley). 
OssERVATIONS.—Of C. Diepenhorstii I have seen a portion of the authentic speci- 
men with mature fruit, which perfectly agrees with my No. 907 of the “Plantae 
Sumatranae.” I have been also able to establish that No. 8606 A of Wallich 
erm to €. Diepenhorstii and not to C. melanacanthus (see observations on this 
Species). 
The diagnostic characters. of C. Diepenhorstii are the leaf-sheaths armed with 
spines which have a broad lanceolate fringed black lamina and a swollen light base; 
the numerous l-costate narrow elongate equidistant leaflets with smooth margins d 
y with 3 bristly nerves beneath; the very elongate spadices; the round fruit 
with light-yellowish scales; the round deeply ruminate seed and basal embryo, 
