£. ruvidus } BECCARI. MONOGRAPH OF THE GENUS CALAMUS, 169 
callus and a transverse axillary rima, flagelliform, very slender, with very. few 
partial inflorescences (2-6, Thwaites), and prolonged into a filiform minutely and 
densely clawed flagellum; primary spathes tubular, very narrow and long, very 
closely sheathing, obliquely truncate at the mouth, rather densely armed with 
scattered small claws; the lowest flattened, the upper ones cylindraceous; partial 
inflorescences small, delicate, 5-8 cm, long, inserted at or above the mouth of 
their own spathe with 2-4 spikelets on each side; secondary spathes very 
narrowly tubular, slightly enlarged above, glabrous, longitudinally  striately veined, 
truncate and apiculate at one side at the mouth; spikelets inserted just at the 
mouth of their own spathe with a callus and transverse rima -at their upper axilla, 
very short (1-2°5 em.) distichous, strongly deflexed, the largest—the lowest—with 
6-7 flowers on each side; the upper somewhat smaller and with fewer flowers; spathel 
obliquely infundibuliform, much narrowed at the base, apiculate at one side at the 
mouth where some strong nerves converge; involucrophorum shortly infundibuliform, 
obliquely truncate, attached at the base of the spathel above its own; involucre 
deeply cupular or  sub-infundibuliform, entire, obliquely truncate at the mouth, 
strongly striately veined, callous at the base; areola of the neuter flower 
broadly ovate or nearly round, with a very sharp border. Female flowers ovoid- 
acute, about 3 mm. long; calyx acutely trilobate; corolla divided into 3 lan- 
ceolate, acute segments, one-third longer than the calyx; calyx and corolla strongly 
striately veined; stamens with the filaments united by their bases, elongately 
triangular in the free portion. Fruiting perianth explanate (not pedicelliform). 
Fruit globular, 10-11 mm. in diam., supported by the somewhat pedicelliform 
involucre and tipped by a distinct mucro; scales in 15 series, distinctly broader 
than long, faintly channelled along the middle, yellowish, sharply bordered with 
a narrow reddish-brown band which is a little broader towards the shortly 
‘ prolonged, obtuse, denticulate tip; margins finely erosely dentieulate, Seed irregularly 
globose, about 8 mm. long, with almost even surface; chalazal fovea small, slightly 
depressed on the raphal side; albumen equable; embryo basal, 
Hasirat.—Ceylon : in the southern districts of the Island (Walker in Herb. 
Kew; Thwaites C. P. No. 3805).—Singalese name ‘ Kookool-Wel.’ 
OBSERYATIONS.—À very elegant species remarkable among all Asiatic 
Lepidocaryee by its digitate leaves, resembling those of the American Lepidocaryum, 
It is also easily distinguished from the two related species, C. pachystemonus 
and C. digitatus, by the unicostate and peculiarly arranged leaflets, 
Puate 30.—Calamus radiatus hw. Portion of a plant with a female spadix 
in flower, from Thwaites’ No. 3805 in De Candolle’s Herbarium. 
24, CaLaMUs ruvipus Becc. in Rec. Bot. Surv. Ind. ii, 202. 
Descriprion.—Scandent. Leaf-sheaths . . » + + Leaves not cirriferous; petiole 
. » + » +, rachis acutely bifaced and smooth above, armed beneath throughout 
with rather strong, solitary, scattered claws; leaflets very few, remote, alternate, 
oblanceolate, rather concave beneath, somewhat suddenly acuminate, long-attenuate 
at the base, chartaceous, rigid, about the same colour perfectly glebrous and 
Any. Roy. Bor. Garp. CarcurTA Vor. XI. 
