D. pachyrostris] BECCARI THE SPECIES OF DAEMONOROPS. 217 
ADDENDA. 
I had just completed the monograph of all the species of Daemonorops known up 
to a few months ago when new and important materials, which had been put into 
my hands by the late Dr. M. Treub and by Colonel D. Prain, rendered the 
present supplement necessary. Except D. bakauensis, all the new additions are from 
Borneo, collected by the late Mr. Teijsmann and by Dr. H. Hallier, and preserved 
in the ‘Herbarium Horti Botanici Bogoriensis,” or by Mr. J. Hewitt in Sarawak, 
and sent to the Herbarium at Kew. 
This supplement brings the species of known Daemonorops up from 84 to 91 and 
thus alters the statistical data which I drew up in the chapter on the geographical 
distribution of the species of that genus, though only in respect of the Flora of 
Borneo. 
The number of species of Daemonorops known to exist in Borneo at the present 
day is raised from 26 to 33, of which 4 belong to the division Cymbospatha: of 
these 3 are endemic. On the whole, the endemic Daemonorops in Borneo amount to 
28, several of these being quite peculiar forms, which exhibit but little affinity 
with species from other countries. Of this number are D. ursinus, D. formiücarius, 
D. sparsiflorus, D. asteracanthus, D. scapigerus, D. cristatus, D. acamptostachys, D. ruptilis, 
D. floridus, D, spectabilis. 
D. turbinatus is a fine addition to the list of species belonging to tke group which 
is furnished with ant-harbouring galleries. 
D. bakauensis is a species without prominent characteristics, growing in a small 
island near Linga, and is the only known endemic species of Daemonorsps discovered 
in the group of the minor Sunda Islands, These, apparently, do not possess a very 
individualised flora, but contain vegetable forms identical with, or very closely related 
to, species growing in Borneo, in Sumatra, or in the Malayan peninsula. These 
islands, however, have not as yet been sufficiently explored on the botanical side. 
l4óis. (85) DazMoNoRoPS PACHYROSTRIS Becc. sp. n. 
DzscRiPTION.— Seandent and of moderate size, Sheathed stem apparently 3-3:5 em. 
in diameter. ZLeaf-sheaths armed rather densely with almost uniformly scattered or 
at times subseriate, unequal, straight, horizontal, dark brown or blackish spines, of 
‘which some are very small and only 3-5 mm. long, others are 15-18 mm. long 
and 3-5 mm. broad at their bases. Leaves apparently rather large; the petiole is 
rather robust, about 2 em. broad, very slightly concave on the upper surface 
where minutely prickly but only near the margins, rather densely armed on the 
back with unequal, straight or hooked spines; the rachis in the intermediate and 
upper portion is bifaced on the upper surface and smooth on the salient angle; 
the cirrus, like the upper part of the rachis, is powerfully armed with half-whorled 
claws, Leaflets very numerous, equidistant, usually 20-22 mm. apart on each side, 
narrow, linear, very acuminate; the medials 35-38 em. long, 12-14 mm. broad, 
Ans. ivov. Bor. Garp., Cancutra, Vor. XII. 
