168 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. (C. radiatus 
yellowish, neatly bordered with a narrow reddish-brown band which is a little 
larger towards the shortly prolonged, obtuse, dentieulate tip; their margins erosely 
denticulate. Seed subglobose, 6:5 mm. long, with a slightly depressed chalazal fovea 
on the raphal side, otherwise with even surface; albumen equable; embryo basal.— 
One fruit had two seeds, which were flat on the ventral face and convex on the 
back. 
Hasrrat.—Ceylon, in the southern part of the Island. Distributed by Thwaites 
with the same number as C. pachystemonus (C. P. No. 2334). It was first discovered 
by Major-General Walker, according to a specimen in the Kew Herbarium. Another 
specimen collected by Gardner is in Webb's Herbarium at Florence.—Singalese 
name ‘ Kookool-wel.' | 
OnssERvaTIONS.— Very closely related to C. pachystemonus (see observations on} this 
species) and C. radiatus. From the last it differs in the fewer, broader and many- 
nerved leaflets, and in the fruit with scales in 12 instead of 15 series. 
Puare 28.—Calamus digitatus Bece. Fruiting specimen from St. Petersburg 
Herbarium. 
PLATE 29.—Calamus digitatus Becc. Female specimen in flower (on the right- 
hand side) from a specimen in De Candolle’s Herbarium ; male specimen in flower 
on the left side from Webb’s Herbarium. 
99. CaLamus RADIATUS. Thw. Enum. Pl. Zeyl. Addenda, 431; Hook. f. Fl. 
Brit. Ind. vi, 442; Becc. in Rec. Bot. Surv. Ind. ii, 20, 
Descrrption.—High scandent, very slender, Sheathed stem 5-7 mm, in diam. 
Leaf.sheaths sometimes flagelliferous, not distinctly gibbous above, more or less 
densely covered with straight, elongate or short, subulate, slender, horizontal 
spines, which are solitary . or confluent by their broad bases and subseriate, 
longer, more numerous and pointing upwards near the mouth, Ocrea short and 
obliquely truncate in full-grown leaves, Leaves not pinnate, but with 5-8 
digitate or radiate leaflets grouped at the apex of the petiole; petiole 
5-7 em. long, subterete, narrowly channelled above, sparsely spinulous throughout 
and sparingly clawed on the back, leaflets rigidulous, chartaceous, about 25 cm. 
long, and 15-22 mm. broad, the two of the centre united at the base, all about 
of the same length, very broadly linear (the outer usually narrower than the 
central ones), shortly attenuate at the base, very suddenly contracted. at the 
apex into an acuminate and very sparingly bristly-spinulous tip, shorter in 
the centre leaflets, shining above, paler beneath, with the mid-costa slender but 
very acute and with 3-4 slender secondary nerves on each side of it; transverse 
yeinlets slender, sharp, rather crowded, much interrupted; margins smooth; the 
mid-costa and nerves smooth on both surfaces. Male spada . . . . . 
Male flowers (as described by Thwaites) cylindraceous-falcate; calyx twice as 
long as broad, with 3 short, acute, triangular lobes; corolla about three times 
longer than the calyx, divided down almost to the base into 3 linear, acute 
segments; stamens with filaments thickened in the lower half. Female spadiz simply 
decompound, inserted near the mouth of the leaf-sheath with a distinct basal 
