E Macgregorii | BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 493 
spathel, but this perhaps is the only one where each of the two is accompanied 
by a neuter one. 
It does not seem related to any of the other species with geminate female 
flowers, and it seems to me also to stand alone amongst the Papuan species of 
Calamus known to me, or at least amongst those where the female spadix is known. 
Prare 226, IIL—Calamus fertilis Bece. Fig. 5, an entire spikelet with two 
mature fruits; fig. 6, portion of the spikelet represented in f. 5, enlarged 6 times; 
fip. 7, fruiting perianth seen from above, enlarged 6 times; fig. 8, seed, dorsal 
view; fig. 9, seed longitudinally cut through the embryo; figures 8, 9, of natural 
size. 
197. Caramus Macerecori Becc. sp. n. 
Description.—Scandent? Leaf-sheaths . . . . . Leaves mot cirriferous, petiole 
ids . , raehis in its upper portion bifaced above, flattish beneath, where irregularly 
and rather densely armed from the base to the very summit along. the middle and 
at the sides up-to a certain distance, with small claws; leaflets numerous, inequidistant 
chiefly near the summit, many of them regularly 2:5 cm. apart and the succeeding 
ones separated by longer intervals ( 3-6 cm.), thinly papyraceous, linear-ensiform, 
equally narrowing towards both ends, not very acuminate at the apex, concolorous 
and shining on botb surfaces, tri-costulate; the costae slender, furnished above with 
a few long bristles; beneath only the mid-costa bristly; the margins remotely and 
adpressedly spinulous, the spinules longer and more spreading near the summit; the 
largest leaflets 30 cm. long and 2 cm. broad: the upper ones suddenly shorter: 
the two of the terminal pair free, but slightly decurrent one above the other at the 
base. Female spadix not seen entire by me, apparently simply decompound; primary 
spathes. . . . .; partial inflorescences short, rigid, patent, 16-20 cm. long, terminat- 
ing in a very short (1 cm. long ) unarmed caudiculum, and with 8-10 spikelets on 
each side; secondary spathes thinly coriaceous, tubular-infundibuliform, unarmed, 
entire and slightly obliquely truncate at the mouth, prolonged at one side into a 
short triangular point; spikelets short, arched, spreading, the lower ones, the largest 
3-4 em. long at most, the upper ones shorter, attached to the bottom of their 
respective spathe through & strongly flattened, 6-7 mm. long, pedicel ; spathels short, 
broadly asymmetrically infundibuliiorm, truncate and slightly apiculate; involucro- 
phorum very short, dimidiately cupular ; involuere cupular, truncate ; areola of the 
neuter flower conspicuous, broadly ovate or suborbicular ‘with sharp raised margins or 
sometimes concave and almost cupular.. Fruiting perianth not pedicelliform, almost 
entirely split and explanate under the fruit; its calyx slightly callous and somewhat 
narrowed towards the base. Fruit ovoid, 13-15 mm. long, 1 cm. broad, almost 
equally narrowing towards both ends, nor mucronate and slightly mammillate at the 
summit and terminated by the small persistent recurved stigmas; scales in 18 series, 
opaque, light straw-coloured, very gibbous with a rather narrow channel along the 
middle, the margins slightly paler and finely erosely toothed. Seed ovate, 8 mm. 
long, 6 mm. broad, rounded at both ends, with a rather deep chalazal fovea on the 
raphal side, coarsely alveolate on the back; albumen equable; embryo basal. 
