THA concinnus ) : BECCARI MONOGRAPH OF THE GENUS, CALAMUS. 311 
base and suddenly ` broadened into an infundibular-campanulate ‘truncate éntire 
- limb which is acute at one side; primary or compound spikelets inserted at the 
mouth of their own spathe, valodi and. with.a deep. rima at -their upper. axilla, 
the largest, the lowest, 7-8 cm. long with many very delicate secondary 
spikelets, each 1-2 cm. long, patent or horizontal, callous in their upper axilla, 
gradually decreasing in length and number of flowers from the base upwards ; 
the largest secondary spikelets with 10-12 very closely packed flowers v 
each side; spathels very crowded,  braeteiform, deflexed, concave, ovate, acute or 
acuminate; involucre slightly concave, subcymbiform, clearly torined by two broad 
and acute bracts united by their bases, spathels and  involueres strongly  striately 
veined. Male flowers distichous, very small 2 mm. long, ovate, acute; calyx 
membranous, deeply trilobate; corolla divided. into 3 ovate-lanceolate acute segments, 
twice as long as the calyx. Female spadix. (not seen entire) simply decompound ; 
partial inflorescences 19-30 cm. long, with 3-6 spikelets on each side; secondary 
spathes infundibuliform, membranous,  subscarious, ‘ultimately marcescent; spikelets 
callous at their upper axilla, 8-12 cm. long, with 18-20 distichous ew on eaeh 
side; spathels furfuraceous, narrowly tubular at the base, suddenly enlarged into a 
broad infundibuliform truncate limb;  involucrophorum  half-exserted from its own 
spathel, laterally adnate to the base of the one above, dimidiately cupular or of the 
shape of a swallow's nest, strongly callous at the axilla next the axis; involucre 
eupular, rather deep; areola of the neuter flower broadly ovate or almost circular, with 
sharp and raised borders. Female flowers small, ovate, acute, about 3 mm. long 
Fruiting perianth explanate, its calyx divided down almost to the base into 3 ovate 
not distinctly striately veined lobes; the segments of the corolla as long as the lobes 
of the calyx, but somewhat narrower. Fruit small, {globose (about 8-9 mm. in diam.), 
apiculate; scales in 18 series, of a+ dirty-straw colour, subshining, rather deeply 
channelled along the middle with a darker short scarious not fimbriate tip; margins 
narrow, scarious, finely erosely tocthed. Seed suborbicular, flattish on the raphal 
side, with a not very deep circular chalazal fovea, very coarsely and deeply pitted 
and tubercled on the convex back; albumen equable; embryo  basal.—All parts of 
the spadix covered with a detachable brown indumentum. 
Hasrrat.—Tenasserim in the Province of Mergui, where it was gathered by 
Helfer on the 8th January 1839 (Nos. 6388, 6394, 6395 Herb. East India Comp. 
in Herb. Kew). In Webb’s Herbarium at Florence the male specimen bears the 
No. 6395. Kurz quotes for this species also Wallich’s No. 8607, which I have 
not seen. 
- . OssERVATIONS.— The specimens I have Pako are in a very fragmentary 
condition. Martius describes this Calamus as an erect or almost stemless species, 
but a note by Helfer in the Herbarium at Kew states that it is a common 
palm, climbing on the higher trees and that it is armed with strong and powerful 
spines. 
It is very imrénty related to C. fasciculatus, from which. it differs in the 
much’ larger leaves and leaflets; in the spathels with a larger, loose, almost inflated 
Ae ie — limb; and in the male Lu RE prs pA 
Ann. Roy. Bor. Garp. eee Vor. XI. 
