BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 115 
C. unifarius var.  Pentong Becc.—Involucrophorum more or less distinctly 
pedicellate. | 
The Nicobar Is'ands. 
177. 0. subinermis H. Wendl.—Robust. Leaf-sheaths 4 cm. in diam., thick and 
woody, quite unarmed.  .Leaves large, 2:5 m. long in the pinniferous part; the 
cirrus robust; petiole 12 em. long, 15 mm. broad, armed only at the margins with 
tuberculiform spines, Leaflets 16-17 on each side of the rachis, 10-15 cm. apart, 
subequidistant, elongate-lanceolate, plicate, many -nerved, with 5 bristly spinulous coste 
above, underneath smooth; margins ciliate-spinulous. | 
Borneo. 
178. C. pisicarpus Bl—Scandent, robust. Leaf-sheaths 2°5 cm. in diam, armed 
with long straight spines. Leaves large, 1°5 m. long iu the pinniferous part; 
the cirrus 2:5-3 m. long; petiole very short. Leaflets scattered, lanceolate, 35-40 
em. long, about 9 cm. broad, plicately many-costate, the mid-costa bristly spinu- 
lous. Fruit pisiform. 
Amboina. 
179. C. aruensis Becc.—Scandent, robust. Leaf-sheaths 3-4 cm. in diam., quite 
smooth. Leaves about 4 m. long in the pinniferous part; petiole obsolete; rachis | 
quite smooth above from its base. Leaflets about 15 on each side, 10-15 cm, 
apart, equidistant, broadly lanceolate, up to 40-50 cm. long, 7:5-8 cm. broad, with 
5 primary eost; and many distinct secondary nerves, all smooth on both surfaces. 
Female spadix rigid and straight with not many, strongly arched, partial inflore- 
scences; spikelets arched, their axis narrowly cylindraceous, 8-9 cm. long, with 20-25 
horizontal flowers on each side; involucrophorum shortly stalked. Fruit small, pisiform. 
Scales in 15 series, faintly channelled. 
Aru Islands. 
180. C. Hollrungii Bece.—Scandent, rather robust. Leaves large, the rachis prickly 
above. Leaflets not very numerous, subequidistant, 6-10 cm. apart, broadly lanceolate, 
with 5 primary coste and many distinct secondary nerves, all smooth on both 
surfaces, the mid-costa only occasionally spinulous above near the base. Female 
spadiz elongate, with several strougly arched diffuse partial inflorescences ; spikelets 
10-12 em. long, with 20-25 flowers on each side; involucrophorum shortly stalked. 
Fruit smali, pisiform; scales in 15 series. 
German New Guinea. 
151. U. Vidalianus Beec.— Apparently scandent and of moderate size. Leaf: 
rachis densely prickly above. Leaflets subequidistant, 3-5 cm. spart, narrowly 
ensiform, 30-32 cm. long, 15-20 mm. broad, with 3 very distinct coste which are. 
bristly spinulous above and smooth underneath; margins conspicuously  spinulous, 
Female spadiz diffuse, terminating in a small taillike prickly appendix; secondary 
spathes unarmed, elongate-infundibuliform, closely sheathing; spikelets spreading, 
arched, 5-7 cm. long, with about 6 rather distant 5 mm. long, sometimes geminate 
flowers on each side; areola of the neuter flower conspicuous, subinvolucriform. 
The Philippines. 
Ann. Roy. Bor. Garp Carcurra Vor. XI. 
