‘450 ANNALS OF THE ROYAL 80TANIC GARDEN, -CALCUTTA. L6. Oxleyanus. 
rachis in its upper portion acutely bifaced above and armed beneath at first with -soli- 
tary. and -upwards, as in the terminal not very robust cirrus, with rather strong 
‘ternate claws; leaflets not very numerous, 8-9 on each side, very inequidistant, never 
very close together, but more or less distinctly and irregularly approximate into a few 
groups, firmly papyraceous, concolorous, yellowish-green (when dry), shining or subshin- 
ing above, quite without bristles or spinules on both surfaces, linear or elongate-ensi- 
form, somewhat narrowed to and acute at the base, gradually attenuated towards the 
summit into an acuminate or sometimes rather suddenly obtuse, sparingly and shortly 
bristly tip, longitudinally plieate, with the mid-costa acute and raised above, and the 
side nerves very slender; beneath all nerves slender; transverse veinlets ^ slender 
inconspicuous ; margins finely very adpressedly spinulous, the largest leaflets, the lower 
ones, 32-33 cm. long, 2-3 cm. broad; those near the summit somewhat shorter 
and narrower.— Other parts unknown.  - | 
HABITAT. S Bheneo: on Mount Mattang near ecd. Beccari P. B. iMm 1905 
and 1930. — } | 
OBSERVATIONS. — This appears ddl, alhed to C. pallidulus amd, as in that species, 
all parts of the plant, but especially, the leaflets, assume in  berbarium Rponimens 
a peculiar yellowish green tint. 
It differs from 40. pallidulus in iis leaves with a long petiole, a more elongate 
pinniferous part and more numerous leaflets. | 
I have collected of this two specimens, each with an entire leaf and a portion 
of the sheathed stem ; in both specimens the sheath has no trace of a flagellum. 
Pirate 202.—Calamus mattanensis Becc. Portion of the sheathed stem with an 
entire leaf (Bece. Š B. No. 1930). or o ies 
173. ee OxLEYANUS ‘l'eysm. & Binnend: in Cat. Plant. Hort. Bot. Bogor. 
> (1866), -75 (name only}; Miq: De Palmis Archip. Ind. Obs. Nov. 
17, with plate; H. Wendl. in Kerch. Les Palm. 287; Becc». in Hook. 
F Fl. Brit, Ind. vi, 458, and in Rec. Bot. Surv. Ind, ii, 214. 
Datindancops, fasciculatus Mart. Hist. Nat. Palm. ii, 3380 (1850?); Walp. 
Ann... iii, 480 and v, 829; Mig. Fl. Ind. Bat. iii, 101. 
Calamus Fernandezii H. Wendl. in Kerch. Les Palm. 236 (1878) Rotang 
Pajare Griff. in Cale. Journ. v (1845), 89, and Palm. Brit. India, 
98 (1850). 
C. diffusus ` Becc. in Hook. f. Fl Brit. Iud. vi, 447 (as to the male 
| spadix) and in Ree, Bot. Surv. Ind. ii, 206. ; 
Descriprion.—Erect (later scandent?). Sheathed stem about 5 cm. in diam. Leaf- 
sheaths not flagelhierous, not gibbous above, gradually passing into the petiole and 
open a.good way down on the ventral side, very densely and irregularly armed with 
large, flat, very acuminate, straight, unequal (up to 2-3 em. long), blackish, shining 
‘spies. Ocrea narrowly berdering the mouth of the sheath, brittle and decidnous, 
Leaves large, 2-3°5 metres long, not including the cirrus; petiole (30-60 em. long), 
