782 , DIOECIA HEXANDRIA, Calamus. 
ceolate, three-nerved leaflets in three remote fascicles; 
sheaths flagelliferous. 
Mapoor? Bet of the Hindoos of Chittagong. 
Tsjera-tsjurel, Rheed, Mal, xii. t, 64. 
A native of the forests of Chittagong, where Mr. W. Rox- 
burgh found it climbing over trees and bushes to a great ex- 
tent, and in flower in the month of May. This species is un- 
commonly slender when divested of the sheaths of the leaves 
and dry, scarcely as thick as a common quill, in texture firm 
and elastic, covered with a smooth, straw-coloured crust as 
in the common ratan. 
Stems simple, perennial, climbing to a great extent ; all the 
tender or younger parts toward their extremities invested, in 
the armed sheaths of the leaves, including these about as 
thick as a man’s little finger. Leaves alternate, recurved in- 
terruptedly pinnate, if 1 may be allowed to call a pinnated 
leaf so, which is destitute of smaller leaflets between the prin- 
cipal ones, from one to two feet long. Leaflets collected in 
three opposite bundles of from two to four pair each, with . 
much more of the rachis left naked between them than the 
spaces they occupy, sessile, doubled backwardly at the base, 
linear-lanceolate, bristly, pointed, both surfaces lucid, 
three-nerved ; nerves on the upper side as well as the mar- © 
gins, bristly, from three to five inches long aid less than one 
inch broad. ib or rachis carinated along the upper side, 
when young covered with ferruginous dust, rounded under- 
neath, and armed with recurved prickles, Flagelli or ten- 
drils, issue ‘single as in the other species, from near the 
‘mouths of the sheaths of the leaves; they are long, jointed, 
slender as a pack-thread, drooping, sheathed, armed with 
numerous, very sharp, recurved prickles, MALg. Spadix 
from the mouths of the sheaths or opposite sides of the fla- 
gelli, compound, jointed ; joints approximate, sheathed ; ra- 
mifications recurved, bearing two rows of sessile flowers on 
their convex side. Calyzx one-leaved, tridentate, sitting on 
the joints of the rachis in a three-toothed cup, which may be 
