BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 109 
153. C.  bubuensis Bece.—Slender and apparently scandent. Sheathed stem. 
about 12 mm. in diam. Leaves about 55 cm. long in the pinniferous part, termin- 
ated by a slender cirrus; petiole about 7 cm. long. Leaflets not very numerous, 
irregularly grouped, linear-lanceolate, 3-costate; the costz smooth on both sur- 
faces; margins smooth. Male spadix simply decompound, rigid, straight, shorter than 
the leaves, not flagelliferous, quite unarmed; spikelets 2-2'5 cm. long with 7-8 flatly 
bifarious, not very approximate, 4 mm. long, flowers. 
The Malayan Peninsula, 
- 154. C. viridispinus  Bece.—Scandent, slender. Leaf-sheaths 8-15 mm. in diam., 
armed with flat greenish cr: schistaceous spines. Leaves up to ‘9 m, long in the 
pinniferous part; petiole more or less elongate. Leaflets rather numerous, 3-costate, 
linear-lanceolate, very long-acuminate, 2-6 approximate on each side of the rachis 
and on one plane (not pointing to different directions) and with long vacant 
spaces interposed; the coste smooth or very sparingly bristly above, quite 
smooth beneath; margins smooth or nearly so. Male and female spadices almost 
similar, both simply decompound, flagelliform, ending in a filiform unarmed appendix. 
Male spikeleis spreading, 4-6 cm. long, with 15-18 perfectly bifarious flowers on 
each side. Female spikelets strongly deflexed and conspicuously callous at their 
axilla, 5-10 em. long, with 5-11 flowers on each side. Fruiting perianth cam- 
panulate, slightly pedicelliform. Fruit obovate, distinctly beaked, 11 mm. long, 6 mm. 
broad. Scals in 12 series, slightly channelled. Seed ovoid-elliptic, smooth; albumen 
equable ; embryo lateral. | 
The Malayan Peninsula. 
C. viridispinus var. sumatranus Becc.—Leaflets much less acuminate than in 
the type and sometimes almost obtuse at the apex. 
Sumatra. 
155. C. mucronatus Becc.—Sheathed stem 4-6 mm. in diam., smooth or armed with 
a few broad spines. Leaves small, 15-30 em. long in the pinniferous part, terminated 
by a very slender cirrus; petiole very short. Leaflets very few, 8-9 on each side 
of the rachis, very inequidistant, oblanceolate, suddenly mucronate, plicate-5-costulate; 
the coste and margins quite smooth. Male spadiz smooth on every part, shorter than 
` the leaves, simply decompound, with very few very small partial inflorescences; primary 
spathes unarmed, smooth; spikelets very short, circinate-scorpiod and 5-10 mm. 
long, with very closely packed flowers. 
Borneo. ; 
156. G. asperrimus Bl.—Scandent.  Leaf-sheaths 7-20 mm. in diam., very scabrid 
and densely prickly. Leaves about 60 cm. long in the pinniferous part, terminated by. 
a very slender cirrus ; the petiole quite obsolete, Lzaflets 8-10 on each side of the 
rachis, “very inequidistant, narrowly lanceolate. gradually acuminate, unicostate, some- 
times with one rather distinct secondary nerve on each side of the mid-coste, all. 
nerves smooth on both surfaces; margins spinulous. Male and female spadices with 
i and secondary spathes scabrid. Male spikelets  circinate-scorpioid. Female 
spikelets spreading, slightly arched, about 4 cm. long, with 8-10 distichous very 
