U.: nematospadix | BECCARL MONOGRAPH OF .THE GENUS CALAMUS. (999 
the upper leaflets shorter and rot so acuminate as the others and bristly- 
penicillate; the two of the terminal pair free at the base. Spadices excessively 
slender and long, terminating in a very slender filiform flagellum, armed with 
very small weak solitary or ternate claws; primary spathes very long, 
very narrow and very strictly sheathing, striate longitudinally; the lowest 
30-35 cm. long, much flattened, 5-6 mm. broad, with two very acute almost winged 
smooth edges, aculeolate along the middle of the dorsal side, obliquely truncate and 
naked at the mouth; upper primary spathes excessively narrow and long, finely aculeo- 
late; axial portions between two partial inflorescences very long, filiform, powerfully 
armed with half-whorled or also single claws. Male spadiz ultra-decompound, in one 
specimen 3 metres in length with very few (3-4) very remote, very long—even 90 cm, 
in length—partial inflorescences, which bear many remota (4-7cm. apart) compound 
spikes on each side, and end in a rather long filiform unarmed taillike appendix ; the 
compound spikes very slender and strict, horizontally attached above the mouth of their 
own spathe with a very distinct axillary callus at their axilla; the lowest, the largest, 
10 cm. long, with 8-10 horizontal very short spikelets on each side; secondary spathes 
elongate, unarmed, very narrow, cylindraceous in their upper part, flattened and 
attenuated lower down, naked and acute at one side at the mouth; spikelets decreasing 
in size from the base of the compound spikes upwards, the lower ones the largest, 10-12 
mm. long with 5-6 distichous flowers on each side, those of the apex reduced to having 
very few flowers or even only one; spathels bracteiform, broad, concave, very acute, 
strongly veined; involucre concave, acute at both sides. Male flowers very small, 2 
mm. long, ovate, acute; the calyx strongly veined, with 3 broad acute lobes; the corolla 
twice as long as the calyx. Female spadiz very much the same as the male, but simply 
decompound and with shorter partial inflorescences (of these the one seen by me 30 
em. long with 7 spikelets on each side); secondary spathes elongate, narrowly tubular, 
very slightly enlarged above, smooth or slightly spinulous, finely longitudinally striate, 
entire, truncate at the mouth and prolonged at one side into a triangular acute, naked 
tip, which is deflexed under the insertion of the spikelet; spikelets filiform, straight 
horizontal or slightly deflexed, attached just at the mouth of their own spathe with 
a distinct axillary callus, 4-5 cm. long with 8-12 flowers on each side; spathels 
cylindraceous at the base, suddenly enlarged into an infundibuliform strongly veined 
limb, truncate and entire at the mouth; involucrophorum and involucre small, laterally 
attached at the base of the spathel above their own, both almost explanate, the 
involucre with 2-3 acute lobes; areola of the neuter flower depressedly lunate. Female 
flowers very small, 1:5—2 mm. long. Fruiting pertanth explanate; the calyx divided 
into 3 rather thick ovate acute parts; the segments of the corolla as long as the / 
lobes of the calyx but narrower, acute, carinate along the middle. Fruit very small, 
pisiform, spheric, very minutely mucronate, 6-7 mm. in diam,;. scales in 12 series, 
relatively large, broader than long, very superficially channelled along the middle, 
light-yellowish at the base, bordered with reddish-brown, the tip acute, not prolonged, 
the margins almost entire. Seed very small, 4'5 mm. in diam., irregularly globular, 
rounded and coarssly alveolate on the back, flattish with very superficial chalazal 
fovea on the raphal side; albumen equable; embryo basal. 
Hasitat.—Borneo; at Sarawak, near Kuching, Beccari P. B. Nos. 1000, 2760, 
1927. 
