€. Ulur.) BEOCARL THE SPECIES OF CALAMUS.~SUPPLEMENT 131 
Neuter flowers about as long as the female, but thinner, and with the corolla about 
twice as long as the calyx. Fruit . . . 
Hasirar.—N. W. Borneo, at Quop in Sarawak (Hewitt in Kew and Manila 
Herbaria, from the Sarawak Museum Herbarium), From a note by Hewitt it 
appears that this Rotang is cultivated by the Dyaks of Quop (who call it * Rotang 
Semoi ") owing probably to the good quality of canes it produces. 
OBsERVATIONB.-- C. Semoi approaches C. leptospadiz in the very elongate spadix, 
and in the spathes of the partial inflorescences, which have a very short tubular 
part, and are abruptly spread out into a broad auriculiform limb; but ©. Semot 
has cirriferous leaves, and must be included in the group XV, where it forms, 
with a few other allied species, a separate subgroup, characterized by the long 
flagelliform spadices and by the peculiar auriculiform secondary spathes. ©. Semoi 
differs from the allied species, aud especially from €. Ulur, to which it is closely 
related, by its equidistant, narrow but distinctly 5-costulate leaflets, but especially by 
the secondary spathes being only slightly longer than their respective spikelets; with 
C. Ulur it has in common the peculiar structure of the female spikelets, which 
have the very closely packed flowers arranged in two collateral assurgent series, 
accompanied by conspicuous neuter flowers which are inserted in a relatively large 
involucriform niche, : 
SuPPL. Prate 75,—Calamus Semoi Becc. Portion of a sheathed stem; 
portion of the female spadix in flower; intermediate portion and upper end of 
a leaf. From BHewitt's specimen in the Herbarium at Kew. 
187d. Caramus Uum Becc. n. sp. 
DescrRIPTION.—Scandent, of moderate size. Sheathed stem in full-grown plants 
about 2°5 cm. in diameter. Leaf-sheatis strongly , gibbous-plicate above, obliquely 
truncate at the mouths, very thinly covered with small, rusty, appressed, orbicular 
scales, and armed with very unequal, solitary, laminar, elongate-triangular, very 
irregularly and often obliquely inserted spines, of which the largest are 1-2 em 
long and have a broad base which is at times 12-15 mm. broad, is more or less 
extended right and eft, and is considerably concave underneath; between the 
spines the surface of the sheaths is marked by very minute, interrupted, often 
approximate, seabrid.serralate or finely’ spinuliferous, slightly prominent ridges. 
Ocrea short, axillary, liguliform, coarsely ciliate. ^ Leaves cirriferous, elongate, with 
several very inequidistant or irregularly aggregated leaflets on each side; petiole 
(in leaves of full grown plants) short, 3-4 cm. long, 14-15 mm. broad, plano-convex 
jn cross section, vith rather acute, usually smooth edges; the petiole is smooth on 
the upper and sparsely prickly on its lower surface, where it has also several 
spinuliferous fransverse ridges; a leaf from a young plant of which the sheathed stem 
in diameter has a petiole 25 cm. long, 7 mm. broad, flattish, 
is only 15 mm. 
the pinniferous 
or slightly concave on its upper surface and convex on its lower; 
part is 55 em. long and terminates in & slender cirrus ; the rachis is armed along 
the centre of the dorsum and on the sides with scattered  claws, its upper salient 
angle is smooth; the leaflets of this leaf are 25 in number in al, irregularly 
Axn. Roy. Bor. Garp. Carcurra Vor. XI. 
