266 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. (C. horrens. 
in Herb. Kew: one seed from the back, another seed longitudinally cut in two 
halves, from the fruit spadix mentioned above. 
77. CALAMUS HoRRENS Bl. Rumphia iii, 4; Mart. Hist. Nat. Palm. ii, 333 
Walp. Ann. iii, 483, and v, 830; Miq. Fl. Ind. Bat. iii, 115, and De 
Palmis, 27; H. Wendl, in Kerch. Les Palm. 236; Becc. Rec. Bot. 
Surv. Ind. ii, 206: 
C. viminalis (not of Willd. nor of any other) Reinw. in Mart. l. c. iii, 
330, and pl. U, f. 3. 
Description.—Scandent, slender or of moderate size. Sheathed stem 1-2 cm. in 
diam.  Leaf-sheaihs gibbous above, armed with scattered, unequal, long or short, 
subulate, laminar, brown, spreading, solitary spines, which are usually obliquely inserted 
and are hollowed underneath in their broad base, crea glabrous, short (6-10 
mm. long), truncate, exsuccous, brown.  Leaf-sheath flagella very slender, flattened and 
acutely two-edged in their lower portion, where scantily spinulous at the sides, 
armed upwards as usual with solitary or irregularly aggregate but not half-whorled 
claws. Leaves not cirriferous, about 1 m. in length; petiole about) 15 cm. long, 
flat and smooth above, convex and armed below along the middle with black- 
tipped, straight, slightly deflexed spines and at the margins with other very 
unequal, straight, horizontal spines of which a few are 1-2 cm. long and others 
much shorter, but not hooked; the upper surface of the rachis, in its lower 
portion, is flat in the centre and channelled at the sides where are inserted the leaflets, 
and is smooth and acutely bifaced in its upper portion; the lower surface 
is convex and is rather densely armed at the sides with small and " occasionally 
rather long, straight spines, and along the middle with a line of straight black- 
tipped slightly deflexed moderate spines, which are transformed towards the summit 
into solitary rather approximate claws; leaflets very numerous, equidistant and rather 
approximate, alternate or subopposite, linear-ensiform or very narrowly lanceolate 
somewhat attenuate at the base, where suddenly plicate; very acuminate at the 
apex, subshining in the upper surface, very slightly paler beneath, tricostate, or 
with the mid-costa accompanied on each side with a secondary nerve stronger 
than the others, the three nerves furnished above with remote spadiceous bristles: 
the other secondary nerves smooth, one of these generally running in close ovat 
mity to or along the margins; in the lower surface the mid-costa slightly prominent 
and sparsely bristly-spinulous; margins rather closely and not very appressed] 
spinulous ; transverse veinlets fine, much interrupted; the largest leaflets, the lower dul 
20-35 cm. long, and 15-17 mm. broad, the upper ones gradually decreasing in ii: 
the two of the terminal pair quite free at the base, almost all furnished on de 
mid-costa near the base on the upper surface with 1-2 small, rigid spinules.—Other 
parts unknown. 
Hasitat,—The low land of Java on the sea coast near Batavia, Blume, 
OssznvATIONS.—I have seen a portion of a leaf from the authentic specimens of 
C. horrens, which has enabled me to recognize this species in some more complete 
specimens coming from the Botanic Garden of Buitenzorg, where they were cultivated 
