26 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. (Ç. pseudo-rivalis. 
Mr. Rogers gives the vernacular name of “China Bet” to his No. 49, and 
says of it that it produces the best white Andamans cane and first quality Rattan. 
Of No. 48 he gives the native name ‘‘Saffed Kupri,” and says that it reaches 
a length of 50 feet, dries white, and is exported with its root as a second 
quality of Rattan. Another specimen which has a more slender stem than those 
now mentioned, and has quite smooth leaf-sheaths, bears the name ‘‘Hasli Bet," 
and the note ‘stem 3ths of an inch, dries white, used for making fine baskets.” 
¿I subjoin the descriptions of Roger’s specimens :— 
Sheathed stem. 2°5-3 cm. in diameter. Canes 12-16 mm. in diameter, whitish when 
dry. Leaf-sheaths (flagelliferous) gibbous above, obliquely truncate at the mouth, thickly 
coriaceous or almost woody, greenish or light yellowish-brown when dry, partially 
covered with a fugacious, thin, blackish scurf, later glabrescent, unarmed or ore 
or less furnished with uniform chestnut brown, laminar, triangular-lanceolate, very 
sharp, 10-15 mm. long, ascendant spines of which some near the mouth on the outer 
side are larger than the others. Leaves (non-cirriferous) about 1 m. long; petiole 13 cm» 
long, 13-14 mm. broad (in one specimen), plano-convex, the upper surface flat and 
irregularly sprinkled with short erect prickles, smooth underneath; the edges rather 
acute, armed with not many spreading or even deflexed, straight, not very large 
spines; in another specimen tbe petiole is quite unarmed; rachis in the intermediate 
portion trigonous, with an acute smooth salient angle above and flat side faces, 
irregularly armed on the back with small solitary scattered claws; leaflets numerous; 
equidistant, rigid, papyraceous, green on both surfaces, glossy above, not very 
approximate (4-6 cm. apart), elongate-lanceolate or ensiform, the intermediate ones, 
and largest, 30—10 em. long, 2:5—3:5 em. in width, broadest below the middle and 
narrowing thence towards a rather acute base and very gradually acuminate above 
towards a rather rigid bristly spinulous subulate tip, which is often conspicuously indented 
on the lower margin; the upper leaflets gradually smaller and wmore approximate, 
those of the apical pair united by their bases and 7-15 em. long: on the upper 
surface the  mid-costa is acute, spinulous only near the apex, the secondary 
nerves are slender and unequal, one on each side of the  mid-costa being 
stronger than tne others, scantily spinulous or smooth; underneath the mid-costa 
alone is sparingly bristly spinulous; transverse veinlets numerous, rather sharp and 
continuous; margins closely serrate with short but comparatively strong spinules, 
Leaf-sheath flagella very lorg, up to 3°d m. (Rogers) and robust, flattened, acutely 
two-edged, 1 cm. broad, armed with ascendant spines in their basal part and 
irregularly armed with solitary or even ternate but not regularly digitate or half 
whorled claws higher up. Male spadiz supradecompound, very long (3-7 m. Rogers), 
made up of 5-6 superposed branches or partial inflorescences, the apical portion flagelli- 
form and armed with short claws; the : primary spathes are tubular, elongate, 
sprinkled with very short prickles and terminating in a triangular-lanceolate, 
dorsally keeled point; axial parts of the spadix between two partial inflorescences 
armed with irregular claws; partial inflorescences elongate, arising erect from inside 
their own spathes, 40-50 cm. long, divided into 3-5 branchlets in their lower part 
and into many single spikelets in the remaining portion; secondary spathes papyra- 
ceous, smooth, very narrowly infundibuliform, usually longitudinally split on the 
ventral side, obliquely truncate at the mouth and produced at one side into a 
