420 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [C. mucronatus. 
Hastrar.— The Malayan Peninsula in the district of Perak on Gunong Tambang 
Batak, Scortechini No. 316 in Herb. Bece.; and on the Thaiping Hills, Ridley 
No. 5203 and 11413 in Herb. Becc. 
OnsERVATIONS,—AÀ very variable species, distinguished in the group with cirriferous 
leaves by its very narrow elongate 3-costate leaflets, which are approximate in 
groups of 2-6 on each side of the rachis and are not pointing different ways but 
are on one plane and have long vacant spaces interposed, recalling in shape and 
disposition those of C. Ozleyanus. 
The specimens from the Thaiping Hills, also in the State of Perak and collected 
by Mr. H. N. Ridley (No. 5203) are more robust in every part than Scortechini’s 
ones; the rachis is more strongly prickly, the leaflets as much as 6 in each group 
and the largest 40 cm. long, sparsely bristly-spinulous on the mid-costa above; 
the female spadix very elongate; upper primary spathes almost cylindraceous; 
spikelets up to 13 cm. long with 18 flowers on each side. 
Prae 184.—Calamus viridispinus Becc. Portion of the sheathed stem with an 
entire female spadix in flower and with an almost entire leaf (wanting the 
cirriferous summit); detached partial inflorescences with ovaries in course of devel- 
opment; detached spikelet with immature fruit; fruit; dorsal and raphal view of a 
seed; another seed cat nm the eas —From Scortechini’s specimen No. 316 
in Herb. Becc. 
Norz.—The quite mature and somewhat bruised fruit and the seeds represented in this plate 
were enclosed in an envelope with Ssortechini’s specimen No. 316 and are supposed to belong to 
these. This seed is very much like that of C. ramosissimus, but in this the embryo is basilar. 
CALAMUS VIRIDISPINUS var. SUMATRANUS Becc. 
. DESCRIPTION. -Peticle armed in its lower part at the margins with a few straight 
horizontal, 1-2 cm. long, spines; leaflets much less acuminate at the apex than in 
the type and sometimes almost obtuse, the tip more or less distinctly — on its 
lower margin and spinulous on both sides. 
Hasirat.—Sumatra, where I have found this variety on Mount Singalang in 
1878, 
155. CALAMUS mucronatus Becc. in Rec. Bot. Surv. Ind. ii. 213, 
Drscur osi ONN very ibo. Sheathed stem 4-6 mm. in diam. Leaf- - 
sheaths not flagelliferous, obliquely truncate at the mouth, sprinkled at first with 
greyish or ferrugineous scales, ultimately glabrous, finely longitudinally striate, slightly 
puckered above, smooth or armed with very few short broad-baséd solitary straight 
horizontal spines. Ocrea very short, liguliform, fugaciously ciliately setose. Leaves 
small, the pinniferous part 15-30 cm. long; the cirrus very slender, filiform, 15-40 
em, in length, armed with very crowded half-whorls of very delicate and very acute 
black-tipped claws, _fugaciously ciliately setose; petiole very short, hardly 1 cm. 
long, smooth; rachis armed beneath with slender, at first solitary, upwards ternate 
claws, 
*- 
bifaced and smooth above; leaflets very few, from 3 to 9 ‘on each side, 
