240 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [C. heteroideus 
more or less distinctly lunate. Female flowers small (3 mm. long), the calyx callous 
at the base, strongly veined, divided down to about the middle into 3 broadly 
triangular acute lobes; the segments of the corola as long as but narrower than 
the lobes of. the calyx. Fruiting perianth shortly ‘pedicelliform. Fruit small, ovate- 
ellipsoid, 12-14 mm. long, 9 mm. broad, sometimes slightly tapering towards the 
base, suddenly «contracted at the apex into a narrow 2 mm. long beak; scales in 
18-19 series, light-coloured or stramineous, shining, slightly convex, very indistinetly 
channelled along the middle with paler marginal line, sometimes tinged with 
reddish-brown, the margins finely erosely toothed, the point not very appressed, 
obtuse. Seed oblong, convex and sinuously grooved on the back, with an oblong 
ebalazal fovea on the raphal side; albumen equable ; embryo basal. 
Hasirat.—Probably the commonest Calamus in Java. It is especially frequent 
in the forests of the largest volcanos at an elevation of 600-1,500 metres, Blume 
mentions the var. A. from the Salak and the Gede; the var. y from the Tij- 
hidung, the Burangrang and the Tankuwanprahu; the var. e from the Burang- 
rang and the Patuha. To C. heteroideus must be referred the specimens distributed 
by Zollinger under No. 783 and gathered on the Salak. Dr. Boerlage has 
forwarded to me a good specimen collected at Tjibodas. Kurz mentions also Bangka 
as a native country for C, heteroideus, 
This Calamus is known in Java by the Malay names: “Rotang Lilin, Rẹ 
Leilan, R, Tratas, R, Tjatjing” and the Sundaneese: “ Hooy Korot” or ^H, Korrot 
or “H. Gorrot, H, Gurrung, H, Tjatjieng, HW, Sege, H,. Mukka? It is much 
employed as cords for ligatures and for many other uses, but is much less esteemed: 
than other species imported from Borneo and Sumatra. 
OssERVATIONS.—Of C, heteroideus I have seen rather numerous, but always very 
fragmentary specimens. It differs from C. Reinwardtii in its smaller dimensions, but 
chiefly in the shape of the fruit, which is subglobular with a distinet and rather long 
beak in C. Reinwardtii, and ellipsoid in OC. heteroideus ; further, the scales of the first 
have a triangular acute point, and are disposed in 15 longitudinal series, while in 
the second the point is less elongate and obtuse and the series are 18-19. As I 
have already pointed out when speaking of C. Reinwardtii, the fruit represented in 
the fig. 15, pl 112 of Martius exactly corresponds to that of €. Aezeroideus. 
C. heteroideus is a mountain plant, while ©.  Reinwardtii appears to be its 
representative in the low land of Java. €. heteroideus seems a very polymorphic 
species, but the varieties proposed by Blume are probably to be considered simply 
as trophic forms. | | 
PLATE 77,—Calamus heteroideus Bl,  Lenf-sheath with the: base of a leaf and 
a fruit-spadix; an intermediate portion of a leaf; a summit of a leaf (upper 
surface); a spikelet with almost mature fruit.—All from Dr. Boerlage’s specimen 
mentioned above. 
CALAMUS HETEROIDEUS var. DEPAUPERATUS Becc. 
. DESCRIPTION —More delicate in every part than the type. Sheathed stem very 
sender, 7-10 mm, in diam, Leaf-sheaths moderately armed with slender or short 
