BECCARI MONOGRAPH OF THE GENUS CALAMUS. 75 
present, more or less approximate to these. Male spadix filiform with afew remote 
partial inflorescences; these elongate, strict, with many short subscorpioid spikelets ; 
male flowers cylindraceous, curved, 4 mm. long. Fruit globular, 9-10 mm. in diam. ; 
scales in 12 series. 
Ceylon. 
23. C. radiatus Thw.—Very slender. eaves not pinnate. Leaflets 5-8, radiate 
or digitate, broadly linear, unicostate, grouped at the apex of the petiole and not 
disposed at the sides of it. Spadices slender filiform. Fruit globular, 10-11 mm. in 
diam, ; scales in 15 series. 
24, C. ruvidus Becc.—Apparently slender or of moderate size. Leaves compara- 
tively short. Leaflets very few, remote, alternate, oblanceolate, slightly concavo-convex, 
28-30 em. long, 3:5 cm. broad, 5-costulate, the costæ naked on both surfaces; the two 
of the terminal pair broader than the side ones and rather highly connate by their 
bases. Fsmale spadix not flagelliferous, rather short with a few short and approximate 
partial inflorescences. Primary spathes decayed in their upper part. ^ Spikelets 6-7 cm, 
long, rather thick, with numerous very approximate bifarious flowers; secondary spaihes,. 
spathels and involucra very scabrid. Fruiting perianth explanate. Fruit ^ small, 
spherical. 
Borneo. 
25. C. seabridulus Bece.—Scandent, apparently slender or of moderate size. 
Leaflets not very numerous, subequidistant, 4-7 cm. apart, flat (not concavo-convex), 
narrowly lanceolate or ensiform, 40-45 cm. long, 2-2:5 cm. broad, 3-costulate 
the cost bristly spinulous above and sparingly spinulous beneath near the apex; 
the two leaflets of the terminal pair slightly shorter and slightly broader than the 
side ones, shortly connate at their base. Female spadiz seemingly elongate; partial 
inflorescences elongate with about 10 rather remote slender spikelets on each side; 
secondary spathes, spathels and involucra very scabrid. 
Billiton. 
26. C. muricatus Becc.—Slender, scandent. Sheathed stem 13-16 mm. in diam. 
Leaf-sheaths armed with very short, confluent, broad-based spines which rest on 
annular raised ridges; these alternating with interrupted wrinkles. Leaves with a long 
petiole. Leaflets about 14-15 on each side, very inequidistant but not grouped, linear, 
about 35 cm. long, 13-14 mm. broad, 3-costulate, the 8 coste bristly above, 
beneath the mid-costa only bristly, the two- terminal leaflets smaller than the side 
ones, free at the base. 
Borneo, 
27. C. zonatus Becc.—Very slender. Sheathed stem 7-8 mm. in diam. Leaf. 
sheaths ornamented with approximate annular prominent ribs, which are scabrid on 
their crest or sometimes furnished with pungent warts or rudimentary spines. Leaves 
50-70 cm. long; petiole short (2-5 cm. long). Leaflets 10-12 on each side, 
inequidistant, not distinctly grouped, linear, 20-28 em. long, 10-12 mm. broad, 
3-costulate; the mid-costa sparingly bristly above, all nerves naked beneath. Femals 
spadiz elongate-filiform ; anm very slender; secondary spathes and spatels scabrid. 
‘Borneo. 
/ 
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Ann. Roy. Bor. Garp. CALCUTTA Vor. XL 
