C. Poensis. | BECCARI. THE SPECIES OF CALAMUS,—SUP PLEMENT, 43 
inflorescences; primary spathes thinly coriaceous or _ subpergamentaceous, tubular, 
tapering towards the base, and somewhat enlarged, and rather loosely sheathing 
upwards, smooth or sparingly armed with small claws, open on one side only near 
the apex, which is broadly triangular and acute; the lowest or first spathe narrowly 
two-keeled; partial inflorescences inserted somewhat below the mouth of their spathe, 
ascendent at first and when outside their spathe arched and recuryed: the lower 
are 10—20 em, long, and have 12-15 spikelets on each side: the upper are 
shorter. and have fewer spikelets; secondary spathes tubular, not very distinctly 
striolute, somewhat broadening in their upper part into an infundibuliform limb, 
truncate at the mouth and produced at one side into a triangular acute or 
acuminate point which spreads under the base of its own spikelet ; spikelets 
inserted just outside the mouth of their spathes, with a distinct axillary callus, 
arched, very spreading or deflexed, their axes slender but rigid: the largest the 
lowest) 6-8 em, long with as many as 16 flowers on each side: the others 
gradually shorter and with fewer flowers; spathels similar to the secondary spathes 
but shorter; involucrophorum orbicular, disciform, flat, sessile with a sign of an axillary 
callus; involucre discoid, flattish, orbicular, with the edge unequal and the central 
scar tumescent; areola of the neuter flower callous, punctiform. Fruiting perianth 
distinctly pedicelliform, the calyx cylindraceous and callous at the base. . Fruit 
(when not quite mature) 4 mm. in diameter, spherical, distinetly beaked; scales 
in 21 series, light straw-coloured with a reddish point, rather glossy, slightly 
grooved along the centre; the margins and point erosely toothed. Seed not seen 
mature. 
HaBrrar.— Western Tonkin: Yên Cu, Père Bon No, 1211 (fruit) and Tai kéuh 
No. $549 (male spadix), in the de Candolle and Paris Herbaria, Vernacular name 
“Cay Mai” 
OssERvaTIONS.— Very closely allied to O. tetradactylus Hance, of which perhaps it 
is a local form, but at present, it is difficult to make a rigorous comparison of the 
two, the fruit of C. Sonianus being known only in the young stage. It seems, 
however, distinct from ©. íetradaciylus by the denser partial inflorescences, with 
more spikelets and these with more flowers; by the involucrophorum which is 
sessile, not pedicellate and possibly also by the smaller fruit, The male flowers 
of C. Bontanus are very similar to those of a specimen collected by Henry in 
Hainan bearing the No, 8213 in the Berlin Herbarium, identified by myself with 
C. tetradactylus. * 
SuPPL. Prare £2.—Calamus Bonianus Bece. Upper portion of a leaf; upper end 
of a fruiting spadix (from Père Bon’s No. 1210); two secondary branchleta with 
male flowers (from Pére Bon’s No, 3549). Both specimens in the Herbarium de 
Candolle. ; 
87 a, Carawus PoENsIS Becc. n, sp. 
Discriptioy.—bather slender. Sheathed stem 15 mm. in diameter, Leassheathe 
flagelliferous (in the terminal and young part of the flowering plant) variegated 
with glabrous and yellowish and rusty-furfuraceous patches, armed with scattered, 
Ann. Rov. Bor. Garp., CarcurrA Vor, X1. 
