20 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA, LC- schistoacanthus. 
OssERvaATIONS.— Easily distinguished amongst the species of the group of C. 
javensis by its short leaves with a terminal deeply bilobed flabellum and two side 
leaflets, which are not opposed, one being in close proximity fo the flabellum, and the 
other 1-2 cm. below on the other side of the rachis. In only one of the several 
leaves seen by me, have I found 3 side leaflets of which the two lowest were 
opposed. 
SUPPL. PLATE 11,—Calamus impar Becc. Upper end of a plant with a male 
spadix; portion of a sheathed stem with a leaf and the base of a flagellum. From 
Hallier’s No. 2033 in the Buitenzorg Herbarium. 
35. CALAMUS FILIPENDULUS Becc. Add:—Ridley, Mat. Fl. Mal. Penins. ii, 193. 
Ridley adds the locality of Rawang in Selangor. 
37. CALAMUS FLORIBUNDUS Griff. 
Mr. Burkill has sent me specimens of this, collected on the Kulsi Range in 
Assam (Herb. Rep. Econ. Prod. of India, No. 20002). Vernacular name “Charai bagula." 
40. C. scmisroACANTHUS D]. 
Of this, which was known in a sterile condition only, I have examined in the 
Buitenzorg Herbarium some nearly complete specimens, with female spadices, collected 
by Hallier in N. W. Dutch Borneo at Sungei Smittouw (No. 1282). 
These specimens agree entirely with that represented in Plate 52 of this volume, which 
was suid to have been collected by Praetorius in Sumatra, Nevertheless I consider 
this statement as uncertain, while it is quite certain that Borneo is the home of 
C. schistoacanthus. 
Descrirrion.—Hallier’s specimens have the leaf.sheaths (flagelliferous) 10-15 mm. 
in diameter; densely armed with the characteristic schistaceous, slightly ascendant spines, 
which have a conspicuous, smooth, light coloured swelling above them at the base. 
Leaves 65-70 cm. long; the leaflets are 18-24 in all, of which 2-3 pairs are very 
near the base, otherwise they have as already described a tuft of black bristles at 
the apex and are dotted underneath with small brown scales, Male spadiz 
Female spadiz flagelliform, very slender and elongate, about 1:5 m, long and terminating 
in a filiform, very minutely clawed flagellum; it is very simple, and has only 2-3 
undivided, very distant, partial inflorescences ; primary spathes tubular, very strictly 
sheathing, very elongate; the lowest 20-25 cm, long, 5-6 mm. broad, strongly flattened, 
acutely 2-edged, smooth or minutely prickly on the dorsum, obliquely truncate at the 
mouth, and produced into an obtuse point, which terminates in a dense tuft of 
hairs; the other primary spathes are terete, very slender, 2-3 mm. in diameter, very 
minutely and sparsely clawed and have also a tuft of hairs at their apex; partial 
inBorescences 30-50 cm. long, flaccid, filiform, with alternately 6-7 small gradually 
diminishing spikelets on each side and terminating in a small, slender, minutely 
clawed, tail-like appendage; secondary spathels closely sheathing, elongate-infundibular, 
3-4 cm. long, beset with very minute scattered claws, obliquely truncate and ciliate 
at the mouth and produced into a triangular bristly apex; spikelets inserted above 
the mouth of their respective spathes, erect, quite appressed to the main axis, sub- 
terete and rather rigid, small and few-flowered; the lower (largest) 2:5-3 cm. | long, 
