C. ciliaris.] BECCARI. MONOGRAPH OF THE GENUS CALAMUS. . 897 
Though seen only in a sterile condition, this Calamus appears fairly characterized 
by its leaf-sheaths opened above a long way down om the ventral side; by the 
deep depressions left upon them by the spines; by the petiole smooth beneath and 
narrowly channelled above; by the 3-costate leaflets, the costae naked above and 
finely densely spinulous beneath, and chiefly by their thickened and in the lower 
surface finely scabrid margins. 
In the absence of the spadices it is difficult to point out the afünities of this 
species, which however resembles to a certain extent C. JDiepenhorstü, 
PLATE 128.—Calamus marginatus Mart. Portion of the sheathed stem with the 
base of a leaf and a cirrhus; the summit of a leaf; a detached leaflet seen from 
the upper surface.—From Beccari P. B, No. 1906. 
107. Cavamus CILIARIS Bl. in Roem, et Schult. Syst. Veg. vii, 2, 1330; Mart, 
Hist, Nat. Palm. iii, 212 Ist edit. and 334; Kunth Enum. Pl, 
ii, 211; Walp. Ann, ii, 484, and v, 830; Bl. Rumphia iii, 34, 
Pl. 147 and -$ E; Miq. Fl. Ind. Bat. iii, 116 and De Palm, 
27; Teysm. Cat. Hort. Bogor. 74; Kurz Veg. Bangka in 
Natuurk. Tijdscr, Ned, Ind. xxxii, 1864, 218; H. Wendl. in Kerch. 
Les Palm. 235; Gard. Chron, Febr. 6 (1897), 86, f. 23; Becc. in 
Rec. Bot, Surv. Ind. ii, 208. 
DrscnRriPTION.— Seandent, slender. Sheathed stem 5-12 mm. in diam. Leaf-sheaths 
flagelliferous in the adult plant when not bearing spadices, gibbous above, striate 
longitudinally, sparingly armed with a few scattered straight spreading  spinules, 
which rest on a bulbous base, and further clothed densely in youth like the petioles; 
rachises and spadices with fulvous deciduous hairs, these resting on bulbous per- 
manent bases which ultimately render scabrid the entire surface of the sheaths 
and other parts of the plant. .Leaf-sheath flagella filiform, flattened and almost 
unarmed in their basal portion, finely aculeolate upwards. Ocrea short, obliquely 
truncate, densely bristly-ciliate chiefly at the margin, Leaves non-cirriferous, elongate 
oblong and often suddenly contracted above the middle in outline, 35-70 cm, 
long, including the petiole; this 10-15 cm. long, deeply and broadly channelled 
above, rounded beneath, where armed with scattered solitary slender claws and 
furthermore, mainly near the margins, with some straight spines ; rachis densely hairy- 
furfuraceous, bifaced above, rounded beneath where feebly armed from base to summit 
with small solitary claws; sometimes almost smooth; leaflets thin in texture, herbaceous, 
very numerous (40-50 on each side) patent, beautifully pectinate, very regularly and 
closely set, linear and almost equally broad from the base to the summit, suddenly 
plicate at the base and also suddenly acuminate at the summit into a setose tip, 
green and subconcolorous on both surfaces, more or less distinctly 3-costulate, the costae 
furnished above with rigid short 1:5-2 mm. long bristles; the mid-costa often 
provided with a solitary, long and strong bristle at its base ut the junction with the 
rachis; on the upper surface occur 2-3 secondary slender minutely spinulous nerves 
between each costa; on the under surface there are no long bristles and all the- 
nerves are densely covered with very fine light hairs, the primary ones more finely 
