D. paohyrostris'] BBCCARr. THR SPECIES OP DAEHOXOROPS.
ADDENDA.
I had just oompleted the monograph of all the species of Daemomropn known up
t o a fow tQoutlis ago \rhen. nevv and important materials, which had been put into
my hands by the late Dr. .M. Treiib and by Colonel D. Prain, rendered the
present supplement necessary. Except D. la/cauensis, all the now additions are from
Borneo, collected by the lato Mr. T e i j s m a n n and by Dr. IT, Plallier, and preserved
in the " H e r b a r i um ilorti Botanioí Bogorionsis," or by Mr, .J. Hewitt in Sarawak,
and sent to the Herbnrium at Kew.
T h i s supplement brings the species of known Damonorops up f r o m 84 to 91 and
thus alters the statistical data which I drew up in the chapter on the seographical
di-stribut-.ion of the species oí that, genus, though only in respect of the Flora of
Borneo.
T h e number of species of Daemonorovs known to exist in Borneo at the present
d a y is raised from 26 to 33, of wl.ioh t belong to the division Üymloipaiha : 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
w i t h speuies from other countries. Of this nniuber aro D. ursinm, D. fonnioarms
D. sparsiflorus, D. asicracanthus, D. scaptyerut, D. crisialus, D. acamptostachys, D. rupUlis,
D. fioTtdus, D, speciahilis,
D. turhinaUs is a fine addition to the list of species belonging t.) the oroup which
i s f u r n i s h e d with a n i - h a r b o u r i n g galleries. °
D. bakauensis is a species without prominent characteristics, growing in a small
i s l a n d near Linga, and is the only known endemic species of Daemonorops discovered
i n Üie group of the minor Sunda Islands. These, apparently, do not possess a very
i n d i v i d u a l i s e d flora, but contain vegetable forms identical with, or v e r y closely related
to, species growing in Borneo, in Sunmtra, or in the Malayan peninsula. These
islands, ho-vever, have nut as yet been sufficiently explored on the botanical side.
145«. (85) DAEMONOKOPS PACHÍROSI'KIS Becc. sp. n.
DESCRirTiON.—Scandent and of moderate size. Shoathed stem apparently 3-3-5 cm.
i n diameter. Lsaf-skeaika 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 J 5 - 1 8 mm. long
and 3 - 5 mm. broad at their bases. Leaves apparently rather l a r g e ; the petiole is
r a t l i c r robust, about 2 cm. 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 hookod spines; the rachis in the i n t e r m e d i a t e and
upper portion is bifaced on the upper surface and smooth on the salient angle;
t h e cirrus, like the upper part of the rachis, is p o w e r f u l l y armed with half-whorled
clawB. Leaflets very numerous, equidistant, usually 20-32 mm. apart ou each side
narrow, linear, very ucuoiinate; the mediáis 35-38 cm. long, 12-14 mm. broad
ANX. UOV. BOT. GÍRD., OAI I'A, TOL. XII.