D. palustris. |  BECCARI MONOGRAPH OF THE GENUS CALAMUS, 405 
Pirate 174.—Calamus palustris var. amplissimus Bece, Upper portion of the sheath 
with base of the leaf; the base of the leaf following that of the preceding figure 
seen from the upper surface; terminal portion of a female spadix.—From the speci- 
men cultivated at Buitenzorg as mentioned above. 
CALAMUS PALUSTRIS var. MALACCENSIS Becc. 
DESCRIPTION. —Sheathed stem 2:5—-8 cm. in diam.  Leaf-sheaths armed with numerous 
laminar unequal long or short usually scattered and horizontal spines; petiole 
moderately long with short prickles at the margins and beneath along the middle; 
leaflets not very numerous, very irregularly set in pairs or even ternate on each 
side with a solitary one interposed (the groups very remote on each side, subopposite 
or alternate with those of the other side), rigidulous, acutely 5-7-costulate, naked on 
both surfaces or with a few spinules above on the mid-costa, lanceolate, narrowed 
to both ends, but more towards the summit, margins distinctly und closely ciliate- 
spinulous, especially from the middle upwards; the largest leaflets, the intermediate 
ones, 30-33 cm. long, 3-4 cm, broad. Male spadix rather diffuse, *6-1 m. long; 
Spikelets more slender than in the type. 
HanrrAT.— The Malayan Peninsula in the district of Perak, Scortechini No. 50^ in 
Herb. Becc. It is called by the Malays “Rotang Getah,” a name which however is 
assigned also to other species, It grows in damp places. 
OssERVATIONS.— The leaflets are narrower and more irregularly set than in Griffith’s 
picture of the typical plant. It is also a smaller and more slender plant than that 
from Pegu, the Andamans and the Nicobars, and has a more slender male spadix 
and spikelets. : 
CALAMUS PALUSTRIS Var, COCHIN-CHINENSIS Becc. in Rec. Bot. Surv. Ind. ii. 211. 
DescripTion.—Smaller than the type. Stem very long, when with the sheaths 
on apparently 25 cm. thick; naked canes 12-13 mm. in diam., polished, Leaves 
not seen entire, but apparently moderately large; petiole , . . . .; rachis in the 
intermediate portion, probably from a radical leaf, with a very obtuse salient angle 
in the upper surface, armed underneath along the middle with remote solitary 
straight or slightly hooked 1-2 cm. long spines (in the leaves of the upper part of 
the plant probably the rachis is clawed as usual); leaflets in distant pairs on each 
side of the rachis, with long vacant spaces interposed, the two of each pair very 
close together, narrowly lanceolate or oblanceolate, 15-35 cm. long, 4-5 cm. broad, 
with 5-6 slender costae naked on both surfaces, slightly concavo-convex, narrowed 
towards the base, gradually acuminate at the summit, tip smooth or slightly bristly- 
‘spinulous, margins inconspicuously and very adpressedly spinulous—the lower one in 
the upper surface usually bordered by a shining band. Male spadz . . . . . 
‘Female spadiz decompound with a few partial inflorescences in its lower part and 
some simple spikelets at each primary spathe upwards and terminating with a small 
and short aculeolate tail-like appendix; the larger partial inflorescences, the lowest 
90-25 cm. long with 6-7 spikelets on each side; primary spathes tubular, closely 
‘sheathing; slightly enlarged above, obliquely truncate and entire at the mouth; the 
first keeled on the back, the upper ones flat or even channelled at the base on 
