C. falabensis) BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 157 
and of a small portion of a female spadix with only one partial inflorescence charged 
with nearly mature fruits. Ingram’s specimen is sterile and consists of the upper 
leafy portion of a stem. à 
The description of the leaf-sheath and of the ocrea is from a sterie specimen 
in the Herbarium at Kew, collected like those of Heudelot on the banks of the 
River Gambia.  Heudelot's original note, with the date of 1836 annexed to his 
No. 372 in Delessert’s Herbarium, says that it is “a palm 2-3 m. high with 
reclining stems which are 3-4 cm. in diam. and furnished as well as the leaves with 
hooked spines. It was in flower and had fruit in March, Found on the Islands 
Cayaye and Souloubolon, where ‘it grows in such abundance'on the banks of the 
river (Gambia) as to render it very difficult to penetrate into the interior of those 
islands," : 
Heudelot's specimens are all very fragmentary, consisting of portions of the leaves 
and detached partial inflorescences with almost ripe fruit. 
— Prare 21.—Calamus Heudelotii Becc. The upper portion of a young plant (on the 
left side) from Ingram’s specimen in Herb. Kew; apex of a leaf and partial 
inflorescences with mature fruit from Heudelot’s No. 372 in Herb. Webb at Florence. 
16. CALAMUS FALABENSIS Becc. sp. n. 
Description.—Scandent and apparently slender. Leaf-sheaths . . . » . Leaves 
not cirriferous; petiole. . . .; rachis in the upper portion flattish beneath, where 
armed with remote, small, black-tipped claws; leaflets inequidistant, inserted at a 
rather acute angle, some of them no more than 2 cm. apart with vacant spaces 4-7 
cm. long, papyraceous, rather rigid, dull-green, slightly paler beneath, very narrowly 
lanceolate, somewhat narrowed to the base and from the lower third part upwards 
gradually acuminate into a very fine point, bristly spinulous at the sides, unicostate or 
sometimes sub-tricostulate ; the mid—costa rather slender, furnished with a few bristly 
brown rather distinct spinules on both surfaces; the secondary nerves are two on each 
side of the mid-costa, with an additional one on each margin—all are naked above 
and one on each side of the mid-costa is spinulous-bristly beneath; transverse 
veinlets fine, not very crowded and much interrupted; the largest leaflets (the 
lowest of the small portion of the leaf seen by me) 20 cm. long and 18-20 mm. 
in breadth; the upper rather suddenly shorter, the two terminal very narrow, free. 
at the base. Male spadiz elongate-flagelliform (not seen entire); the basilar axial 
portions between ‘wo partial inflorescences narrow and armed on the back with 
more or less aggregate claws; upper primary spathes very narrow, very long, tubular- 
cylindraceous, very closely sheathing, almost polished, but striate laterally, obliquely 
truncate at the mouth and extended at one side at the apex into a tri 
point; partial inflorescencés inserted above the mouth of their own spathe, not callous 
at their axilla, arising at first erect next to the axis, then nodding, in one specimen 
35 cm. long with 12-13 spikelets on each side and ending in a cylindra- 
ceous tail-like appendix—about 4 cm, long, sheathed with unarmed spathes; secondary 
spathes tubular-infundibuliform, narrowed to the base, unarmed, finely striately 
veined, entire and obliquely truncate at the mouth, prolonged at one side into a 
rather elongate triangular point; spikelets attached near, but inside the mouth of their 
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