0. mindorensis. | BECCARI. THE SPECIES OF CALAMUS.—SUPPLEMENT. 83 
long, straight, horizontal spines; rachis in the intermediate portion obtusely trigonous, 
fugaciously ashy-furfuraceous, with an obtuse, smooth salient angle on the upper 
surface, armed underneath at the base with rather remote, solitary, but higher up with 
at first binate, then 3-nate, black-tipped claws. Zeaflets rather numerous, about 50 
im all, equidistant, not very approximate (6-7 cm. apart), rather rigidly papyraceous, 
green on both surfaces, slightly paler underneath, narrowly elliptical-lanceolate, tapering 
almost equally towards a plieate-plurieostulate base and an acute apex, the latter 
spinulous; the mid-costa alone rather prominent and sharp on the upper surface and 
spinulous, as are two other side costulae which are near the upper margin; the other 
costulae very slender and smooth; underneath the nerves are numerous but devoid of 
bristles or spinules; the intermediate leaflets are 45-47 em. long, and 4:5-5 em. broad: 
the lower ones are smaller, 20-25 em. long and proportionsly narrower. Male spadiz 
forming a large compound and diffuse panicle, 2 m. in length, glabrous in every 
part anl divided into several triple-branched, partial inflorescences; primary spathes 
thinly coriaceous, greenish-yellow, tubular, tightly sheathing and smooth; the first 
spathe is 15 em. long, and about 3 cm. broad, flattened, two-edged, the edges 
very sharp and spinous above, horizontally truncate and fringed with  paleaceous 
scales at the mouth, prolonged at one side into an elongate, triangular, dorsally 
keeled and spinous point. ‘The partial inflorescences are flexuous, very long and 
slender; one belonging to the lower part of the panicle is 1:2 m. in length, with 
its axial part 5-6 mm, thick at the base and with about 12 branches distichally 
inserted or each side; secondary spathes tubular, tightly sheathing, 3-4 cm. long, 
smooth, entire, truncate and also ciliate at the’ mouth, and prolonged at one side 
into a triangular acute point; the secondary branches are inserted outside the mouth 
of their respective spathes, and have a distinct axillary callus; they are slender, 
flexuous, 2-275 mm. thick, 30 cm. long, or thereabouts, and bear distichally 
numerous spikelets; the tertiary spathes are smooth, elongate, infundibuliform, 10-15 
mm. long, truncate and ciliate at the mouth like the others and prolonged at one side 
into a triangular point which subtends their respective spikeiets. The spikelets are 
pectinate and spreading, arched, usually 2 em. long or at times shorter, bearing about 
20 very approximate, exactly bifarious flowers on each side, and when measured with 
the flowers about 6 mm. broad; spathels very short, very closely packed, concave and 
almost boat-shaped, obtuse and deflexed; involucre formed by two concave: bracteoles 
united by their bases and immersed in their respective spathels which contribute 
with the involucre to form a small cup to their respective flowers. Flowers in 
contact with one another; the full grown bud is 2:5-3 mm, long, cylindrical 
apiculate; the calyx has 3 deltoid, acute, deeply-striate teeth; the corolla is twice as 
long as the calyx. Female spadiz decompound, forming a large diffuse panicle; primary 
spathes . . . ; partial inflorescences 40-50 cm. long (the few I have seen) with 
10-12 spikelets on each side; secondary spathes (the spathes of the partial inflores- 
censes) narrowly tubular-infundibuliform, unarmed, striolate, very thinly and fugaciously 
furfuraceous, produced at the summit into a broadly-triangular acute point; the mouth 
ciliate with small paleolae; spikelets (when bearing the fruit) spreading or hori- 
zontal, slightly arched, with a distinct axillary callus and inserted just at the 
mouths of their respective spathes, 10-12 cm. long (the upper ones somewhat 
shorter) with 20-22 distichous flowers on each side; spathels shortly, very broadly 
Ann. Roy. Bor. Garn. Cancuita, Vor, XI. 
