Q. tomentosus.] BECCARI. MONOGRAPH OF THE GENUS CALAMUS. | 339 
rather firm, opaque, green above, slightly paler beneath, glabrous, broadly ovate-rhom- 
boidal, almost equally narrowed to both ends, cuneately attenuated, acute and sometimes 
slightly asymmetric but not ansate at the base, suddenly contracted at the apex into 
a bristly-ciliate, linear, 10-15 mm. long tip, flabellate or radiately plicate with 7-9 
main costae, almost equally prominent on both surfaces and radiately divergent from 
the bases of which only the central reaching the summit, and the side ones arching 
near the margins and evanescent at different levels; secondary nerves slender 
and like the primary ones naked on both surfaces; transverse veinlets numerous 
crowded, parallel and continuous across the blade; margins slightly undulate from 
above the middle where usually closely ciliated with spreading subspiny bristles; 
the middle-sized leaflets 25 cm. long, 10 cm, broad, the upper slightly smaller; the 
two of the terminal pair divaricate, in one specimen 18 cm. long and 7 cm, 
broad; the largest leaflets seen by me 35 em. long, 11 em, broad. Male spadiz 
s. . . Female spadiz flagelliform,. very elongate; in one specimen 2:3 m. in 
length, including a terminal flagellum; partial inflorescences only two; the flagellum 
itself 70 cm. long, strongly and somewhat irregularly armed with ternate or'half-whorled 
claws; primary spathes tubular very elongate, very closely sheathing, more or less 
armed, especially on the outer side, with solitary and scattered or slightly confluent. 
small claws, entire, not ciliate, and obliquely trancate at the mouth, prolonged at one 
side into a broadly triangular acute or acuminate point; thelowest spathe very slightly 
compressed, obsoletely edged, the upper ones cylindraceous very slightly narrowed ‘to. 
the base; partial, inflorescences rigid, erecto-patent, 20-25 em. long, with 6-7 
distichous spikelets on each side; secondary spathes tubular-infundibuliform, unarmed, 
almost horizontally truncate and entire at the mouth, slightly prolonged at one side 
into a short ciliolate point; spikelets attached just outside the mouth of their own 
spathes, slightly callous at their axilla, arched, horizontal or deflexed, rigid and rather 
thick; the lowest, the largest, 5 cm. long with 8-9 flowers on each side, the others 
gradually smaller; the uppermost 2-2°5 cm. long with 4-5 flowers on each side; 
spathels shortly asymmetrically infundibuliform, truncate, entire and ciliolate at the 
margin, slightly apiculate at one side, white-tomentose like the spathes; involucre 
slightly pushing down the point of its own spathel and attached at the base of the 
one above; very shortly cupular; involucre cupular, slightly exceeding the involucro- 
phorum; areola of the neuter flower distinctly lunate, sharply bordered. Female 
flowers ovate, obtuse (when not quite full grown); the calyx shortly 3-toothed, glabrous, 
striately veined. Fruit unknown. | 
Hasitat.—The Malayan Peninsula: in the District of Perak, Scortechini No. 431°; 
at Larut, alt. 760-900 m. Kunsiler No. 6993 in Herb. Calc,; and at 100m, in the 
same locality (Herb. Cale. No. 5332). \ 
OxseRvations.—A very remarkable species very nearly allied to C. rhomboideus 
with which a precise comparison is difficult as the female spadix of this is unknown 
and in tomentosus it is the male one that is not known. From the materials at my 
disposal C. tomentosus apparently differs from C. rhomboideus in the more distinctly 
cottony tomentum which covers the different parts of the plant (except the leaflets 
and the flowers) and in the leaflets with fewer costae, 7-9 instead of 9-12 and, if 
the statement of Blume be correct, in the petiole which is channelled above in 
€. rhomboideus and roundish in O. fomeniosus. 
Ann. Roy. Bor. Garp. CarcurrA Vor. XI. 
