e. ornatus.) BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 369: 
claws; the leaflets are 60 cm. long by 65 cm., light coloured (when dry), paler 
or subglaucescent beneath, elongate-lanceolate, attenuate and strongly plicate at the 
base, acuminate at the apex into a short point; the primary nerves are 5, of these 
2 are weaker than the others, the mid-costa is rather acute and prominent above 
and bears short spinules near its summit; below all the nerves are very faint and 
naked; transverse veinlets very crowded, delicate; margins distinctly spinulous. 
The Larut specimen (No. 3951) agrees pretty well with those of Griffith as to 
the leaflets of the adult leaves, and both differ from those of Java only in being less 
spinulose on the upper surface which appears 3-costate instead of 5-costate, two of 
the primary nerves being weaker than the others and nearly of the same strength 
as the secondary ones. A terminal portion of a radical leaf has the apical leaflet 
flabelliform deeply partite, each lobe being furnished with 7 spinulous costae above, 
naked beneath. Scortechini’s No. 587°, according to a note by the collector, is a very 
high scandent and very robust plant, creeping on the ground in the lower portion 
with internodes 45-60 cm. long and furnished with a tuft of radical leaves rather 
larger than the cauline ones 2-3 metres long, their petiole 0'6-1 m. long; the 
leaflets 5-10 cm. apart (Scortechini). The specimen mentioned has the sheathed stem 
6 cm., and the naked canes 2°5-3°5 cm. in diam,, the leaf-sheaths are armed with 
broad, laminar, lanceolate spines, 2-3 cm. long, confluent and arranged in series, 
these 3-5 cm. apart. Some of its leaflets are distinctly 5-costate, all the costae 
being spinulose; others, those of the adult leaves, are 3-costate. It seems that the 
leaflets of the radical leaves have 5 spinulose costae and that those of the upper 
portion of the stem are only 3-costate and less spinulous. 
CALAMUS ORNATUS var. SUMATRANUS Becc. in Rec. Bot, Surv, Ind. ii, 215. 
C. ornatus Bl. Miq. Palm. Sum. in Journ. de Bot. Néerl. i, 21, and Prodr, Fl. 
Sum. 250. 
Derscription.—Leaf-sheaths furfuraceous, powerfully armed with broad lanceolate, 
not confluent, but closely and obliquely seriate spines. Leaflets in the upper cauline 
leaves 3- and sub-5-costate ; 3 costae only spinulous above, Fruit with almost black 
scales when dry. 
HaBrrAT.— Sumatra. Prov. of Padang in the very dense and damp forest near 
the stream at Ayer Manchor, Beccari P, S. No. 833. 
OssERvATIONS.— Very large. Leaf-sheaths sparsely furfuraceous, 6 cm. in diam., 
extraordinarly armed with numerous non-confluent robust | laminar lanceolate spines 
which have their base 10-15 mm. broad swollen above, 2-3:5 em. long and arranged 
in oblique interrupted and very approximate rows. Leaves of the upper part of 
the stem subcirriferous; their rachis armed, mainly towards the summit, with 3-nate 
robust, black-tipped claws; leaflets pale beneath, sub-5-costate with the mid-costa 
acute and spinulous, mainly towards the point, a lateral nerve on each side is also 
sparingly spinulous above, the other nerves are more slender and naked; the largest 
leaflets 60 cm. long, 6 cm. broad; those of the subcirriform summit 8-10 cm. long, 
1 cm. broad. Fruit ovoid-elliptic suddenly contracted into a conic beak, crowned by 
the remains of the not very distinct stigmas, rounded at the base, but furnished 
Ayn. Roy. Bor, Garp, CarcurrA Vor, XI. 
