148 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [D. Korthalsii 
55. Darmonorops Korrmarsi Bl. Rumphia, iii, 23, tab. ~~ C; Mart. Hist. Nat. 
Palm. iii, 398 ; Miquel Fl. Ind. Bat. iii, 92 ; Walp Ann. iii, 478 
and v, 828; Becc. in Rec. Bot. Surv. Ind. ii, 226. 
Calamus (sect. Demonorops) Korthalsii Miq. Anal. Bot. Ind. 6, and De Palm 
Arc. Ind. 28. 
Descriprion,—Scandent, of moderate size. Sheathed stem 22-25 cm. in diam. (in 
one specimen). Leaf-sheaths gibbous above, coriaceous and almost woody, rusty-fur- 
furaceous, strongly striate longitudinally, the mouth obliquely truncate, and armed 
with a number of large, erect, straight, thinly laminar, elastic, 7-8 om. long spines; 
otherwise the entire surface, and the base of the petiole above the gibbosity is 
armed with numerous, rather large (2-3 em. long, 3-5 mm. broad), thinly laminar, 
brown-schistaceous, spreading or deflexed, usually solitary and scattered spines which 
when young have fringed farfuraceous edges and are set in a line along the ventral 
side; near the mouth the spines are smaller, but very crowded and ascendent. 
Ocrea inconspicuous. Leaves 1°5 m. long in the pinniferous part and terminating in 
a slender, elongate cirrus; petiole elongate (50 cm. in one specimen), biconvex with 
the edges very obtuse, except at the base, where they are rather acute, and 
armed with a few, straight, and long spines, otherwise the edges espacially 
on the upper surface, are armed with very small, short and straight, solitary 
or more or less aggregated prickles; underneath, the petiole has a few 
straight spines at its base along its centre, otherwise it is smooth but 
for some small, solitary prickles which appear only where the leaflets begin; 
the rachis is convex above in its first portion, then  bifaced, with a very 
acute salient angle, smooth throughout ; underneath the claws, at first solitary, 
become as usual 3-nate and 5-nate upwards, and half-whorled on the cirrus; 
leaflets numerous, equidistant, 243 cm. apart on each side, papyraceous, green, 
dull, paler beneath, linear-lanceolate, broadest about the middie or a little below, 
and thence gradually narrowing towards the base, and upwards into a finely 
subulate and filamentous tip; they are distinctly —3-costulate on the upper 
surface where the mid-costa is slightly stronger than the 2 side nerves and all 3 
or the middle one only bristly-spinulous from the middle upwards; on the under. 
surface 5-7 nerves are very closely covered with very small bristly spinules; transverse 
veinlets very distinct, rather numerous, much interrupted; margins minutely 
and very appressedly spinulous, the lower margin on the upper surface bordered 
by a very narrow shining band. Spadices before flowering erect,-cylindraceous, as 
thick as a man’s finger; primary spathes thickly coriaceous, almost woody, at 
first tubular or narrowly ear-shaped, each projecting a good dbal beyond that 
immediately below; the outermost more persistent than the others, after flowering 
opening flat, at least in its upper part spathulate-cuneiform, graduaily narrowing 
to the base from near the upper end; the apex broadly bidentate (in one specimen), 
rusty-furfuraceous externally and armed over the entire surface with very short 
and very broad, flat, often confluent or seriate or at times laciniate, slightly 
deflexed, brownish spines, glabrous and shining internally; inner spathes smaller, 
deciduous, gradually less spinous, the ultimate smooth, Mal: spadiz erect, 
