192 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. (D. acanthobolus 
The specimen collected by me bears only an unopened male spadix, and 
Lobb’s has a spadix with very young fruit, The two spadices on first inspection 
appear quite different; but the outermost spathes of both are quite identical, and 
moreover the leaf which accompanies Lobb’s specimen agrees in every particular 
with that of the male plant. 
In the Calcutta Herbarium, the parts belonging to Daemonorops cristaius and 
Calamus ferrugineus, both collected by Lobb in Borneo, had been mixed together, 
and the spadix of one was glued on the same sheet with the leaves of the other, 
and vice versá, On account of this shifting of parts, I have described in the 
Records of the Botanical Survey of India a Daemonorops diversispinus, which must be 
eliminated, being established upon the female spadix of Daemonorops cristatus and the 
leaves of Calamus ferrugineus. Further material forwarded from Calcutta, after the 
publication of my paper on Calamus in the “Records,” has enabled me to recognise 
the error. 
Prate 83.— Daemonorops cristatus Bece. Portion of the sheathed stem with an 
entire leaf and a male spadix before the anthesis; from P. B. No. 1925 in Herb, 
Beccari. 
Puare 84,—Daemonorops cristatus Bece, Base of a leaf andj upper portion of a 
leaf-sheath ; an entire spadix with very young fruit; upper end of a leaf. This is 
the spadix described by me (Rec. Bot. Surv. Ind. ii, 229) as that of D. 
diversispinus, from a specimen collected by Lobb in Borneo (Herb. Calcutt.). 
77. DAEMONOROPS ACANTHOBOLUS Becc. in Rec. Bot. Surv. Ind. ii, 228. 
D. geniculatus var. sphaerocarpus Becc.| in Rec. Bot. Surv. Ind. ii, 228, 
D. accedens (non Bl.) Miq. Prod. Fl. Sum., p. 256. 
DESCRIPTION.—Not scandent. Stem erect, short. Leaf-sheaths 2:5 cm. in diameter, 
rusty-furfuraceous, not gibbous above, very obliquely truncate at the mouth, armed 
and ornamented, especially ou the upper part of the dorsum, with a few 
sub-parallel, oblique, semi-circular, spiniferous, deflexed, membranous crests, formed by 
the confluent bases of a few, very long (as much as 6-7 cm.) light coloured, flat, 
narrow, very acuminate spines, and by numerous, small, brown spiculae filling the 
spaces between; the mouth obliquely truncate, setigerous on the ventral side. ^ Ocrea 
inconspicuous, glabrous. Leaves elongate, 15-17 m. long in the pinniferous 
part; very shortly cirriferous or terminating in gradually smaller and abortive 
leaflets; petiole at first fugaciously furfuraceous, later almost polished, robust 
and elongate, 50-70 cm. long, 12-14 mm, broad, concave on the upper 
surface at its base only, then plano-convex, and from the middle upwards 
unequally  biconvex, ie, more convex on the lower than on the upper 
surface, armed on its lower part almost regularly, and at rather short 
intervals, on the not very acute edges, with extraordinarily long, straight, 
very rigid or woody, very acuminnate, erecto-patent, spiky spines, each of 
these often accompanied at their bases by 1-2 smaller and divergent spines; 
higher up the spines are shorter, horizontal or deflexed; the upper surface and the 
dorsum are smooth; rachis in its lower portion armed, beneath, on the sides, and 
