C. hypoleucus. | BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 807 
of the one above, calyculiform, rather shallow and apparently formed by ‘two 
triangular acute bracts united by their bases. Male flowers very small, 2 mm. long, 
trigonous-pyramidate, acuminate ; the calyx strongly striately veined, divided down 
about to the middle into 3 broadly triangular acute teeth, which have a scarious 
margin; the corolla about twice as long as the calyx, almost entirely divided into 3 
lanceolate-acuminate subpolished segments; stamens sub-biseriate, 3 of them longer 
than the others, the filaments united by their bases, subulate with inflected apex in 
the bud, anthers elongate-sagittate acute; rudimentary ovary formed by 3 concrescent 
elongate bodies, which reach about halfway up the filaments. Female spadiz and 
Jruit unknown. 
Hasirat.—Tenasserim; in the Province of Mergui, Helfer No. 6397 in Herb, 
Kew., St. Petersb. and Berlin, 
OnsERvaATIONs.— The specimens upon which this species is based consist only of 
some portions of a male spadix and a few detached leaflets, but nevertheless it seems 
to me a well-characterised species, though related to C. Guruba and O. ramosissimus, 
and distinguished in the group by its large elongate elliptic-lanceolate many-costate 
leaflets, which are green above and whitish beneath; the elongate slender spadices 
with many partial rather remote inflorescences; and the very minute  trigonous 
acuminate male flowers. The spathes have been torn in the speeimens seen by me, 
but by their vestiges they seem longer than their respective inflorescences, thin and 
filamentous in texture, and soon destroyed, 
Piate 118.—Calamus myrianthus Becc. An intermediate portion of a leaf, with 
two leaflets and portions of a male spadix. From Helfer’s No. 6397 in Herb. Berol. 
97. CaraMus HYPOLEUCUs Kurz, For. Fl. Brit. Burma, ii, 523 (excl. descr. male 
spadix); H. Wendl, in Kerch. Les Palm. 236 ; Hook. f, Fl. Brit. Ind. 
vi, 451; Becc. in Rec. Bot. Surv. Ind. ii, 207. 
Daemonorops hypoleucus Kurz in Journ. Asiat. Soc. Beng. xliii, II (1874) 
208 (partly as to descr.) and pl. xvur (exel. pl. xix). 
DescripTion.—Slender and apparently scandent. Sheathed stem 7-8 mm, in diam. 
Leaf-sheaths (not flagelliferous) slightly gibbous above, brown when dry (like the other 
parts of the plant except the lower surface of the leaflets) with vestiges of furfu- 
raceous patches and thence probably mottled, armed with small (5-7 mm, long) flat 
broad-based  elongate-triangular spines; these intermingled with other spines of the 
same shape but much smaller; a few spines at the mouth of the sheath and at the 
base of the petiole are longer than the others. Ocrea membranous, truncate, then brittle 
and deciduous, eaves short, not cirriferous, in one specimen 45 cm. long; petiole 
short (4 cm. long), subshining and yellowish-brown like the rachis, deeply channelled 
above, rounded beneath ; the margins acute, smooth or scantily spinulous, rachis in its 
upper surface flat in ihe first portion and bifaced upwards, rounded and armed 
beneath along the middle, and sparsely also at the sides, "with solitary rather strong 
black-tipped claws; these more numerous in its terminal portion; leaflets few (in one 
leaf 17 in all) very, distinctly grouped, with vacant spaces 8-10 cm, in length, 
usually disposed in opposite pairs, papyraceous, slightly concavo-convex, elliptic-lanceolate 
Ann. Roy. Bor. Garp. CarcurrA Vor. XI. 
