D. trichrous.] BECCARI. THE SPECIES OF DAEMONOROPS. 71 
Amongst the Malayan species of the group to which it belongs, it is rather easily 
distinguishable by its leaves with numerous, approximate and very regularly set, com- 
paratively small, linear and narrow leaflets, which are inserted at avery wide angle or 
almost horizontally; by the very short obcunic  involuerophorum supporting the 
neuter flower with one of the sides of its limb, and by the small reddish-brown 
or alutaceous fruits, It is, however, very closely related to D. trichrous Miq., and I 
feel inclined to consider it as only a variety of this. 
In the most typical forms of D. írichrous the scales are peculiarly spotted on 
their points, while the fruits of Ridley’s specimen No. 5123, the only ones I have 
seen of D. angustifolius, have the tips uniformly blackish at the margins; but this 
same colouration occurs also frequently in D. írichrous. 
It is quite certain that D. carcarodon Ridley corresponds to D. angustifolius 
Mart.; while the plant that Ridley has considered as D. angustifolius is apparently, 
at least in part, D. Sepal Becc. 
Prate. 18.—Daemonorops angustifolius Mart. The male spadix with a portion of 
a leaf on the right hand side, from Ridley’s No. 6279 in Herb. Beccari; the other 
figures from Ridley’s No. 5123 in Herb. Beccari. 
17. Darmonorops TRICHROUS Miq.: Prodr. Fl. Sum. (1860), 255 and 592 
and in Journ. Bot, Néerl i, 19; Teijsm. et Binn. Cat. Hort. 
Bot. Bogor. 74; Becc. in Rec, Bot. Surv. Ind. ii, 219. 
Calamus trichrous Miq. De Palm. Arc. Ind, 28; Kurz Veget. Bangka in 
Natuurk, Tijdser. Ned. Ind. xxvii (1864), 218; H. Wendl. in Kerch. 
Palm., 238. 
DescripTion.—Scandent, of moderate size. Sheathed stem 2-3 cm, in diameter. 
Leaf-sheaths of the lower part of the plant and of all non-cirriferous leaves not gibbous 
above and armed with rather broad, long and short, usually obliquely inserted, scat- 
tered, laminar, elongate-triangular spines; the sheaths of the cirriferous leaves gibbous 
above and apparently armed with smaller spines and with a petiole 20-30 cm. long; 
the latter (in the non-cirriferous (lower) leaves is channelled above, while in the 
cirriferous is flattish or slightly convex, sparsely, and not densely prickly on the upper 
surface, especially near the margins, rounded beneath where armed along the dorsum 
with solitary and not very strongly curved claws which on the rachis become of the 
usual kind, 2-3-nate and 5-nate on the cirrus; the margins are armed with variable, 
straight and sometimes robust spines; on the upper surface the rachis is smooth 
throughout, obtusely convex at first, bifaced with a very acute, salient angle from 
about the middle upwards. Leaflets numerous, very regularly and closely set (10-15 
mm. apart) at a very wide angle or very spreading, thinly papyraceous, green on 
both surfaces, 20-25 cm. long, 8-10 mm. broad, somewhat narrowed to a not very 
acute base, gradually acuminate from above the middle to a capillary tip; rather 
distinctly tri-costulate on the upper surface’ where the mid-costa is bristly spinulous only 
from the middle upwards, and the side costulae are furnished, from not very far 
above the base, with rather long bristles; on the lower surface the mid-costa only is 
finely and closely bristly-spinulous; the margins very finely and closely spinulous- 
