88 
The Philippine Journal of Science 
1916 
young, becoming quite glabrous; lateral nerves about 7 on each 
side of the midrib, slender, not prominent ; petiole, including the 
petiolule, 1 to 1.5 cm long. Inflorescence axillary, cymose, fer- 
ruginous-pubescent, 2 to 3 cm long. Flowers about 6 mm long, 
their pedicels 1 to 2 mm in length, sparingly pubescent. Calyx 
somewhat cup-shaped, 3.5 mm long, sparingly appressed-pubes- 
cent, shortly 5-toothed, three of the teeth narrower than the 
other two. Petals sparingly pubescent externally. Standard 
with an orbicular, rounded limb about 3 mm in diameter, re- 
flexed in anthesis, the claw slender. Keel petals as long as the 
standard, prominently hastate or appendaged at the base, the 
claw slender, 2.5 mm long, the limb inequilateral, oblong-obovate, 
somewhat falcate, rounded. Stamens united into two phalanges 
of four each, with an intermediate one between the phalanges, 
the vexillary filament wanting. Ovary narrowly oblong, stipi- 
tate, densely and minutely ferruginous-pubescent, the style subu- 
late, about 2 mm long. 
Sarawak, Baram District, Miri, Hose 678, April, 1895. 
A species well characterized by its unifoliolate leaves; the single leaflet 
comparatively large, castaneous and shining when dry, and of nearly the 
same color on both surfaces; and its short inflorescences. It is manifestly 
very closely allied to Dalbergia subalternifolia (Elm.) Merr. of Pala- 
wan and Sarawak, which, however, has much longer inflorescences and 
3-foliolate leaves. 
PTEROLOBIUM R. Brown 
PTEROLOBIUM BORNEENSE sp. nov. 
Frutex scandens, aculeatus, inflorescentiis foliisque exceptis 
glaber; foliis circiter 20 cm longis, rhachibus griseo-puberulis, 
pinnis circiter 10-jugatis, 4 ad 6 cm longis; foliolis 10- ad 14- 
jugatis, glabris, anguste oblongis, circiter 1 cm longis, 3 ad 4 mm 
latis, apice rotundatis, leviter retusis, basi inaequilateralibus ; 
inflorescentiis dense pubescentibus, circiter 20 cm longis, flori- 
bus numerosis; leguminis glabris, 5 cm longis, circiter 1.4 cm 
latis, basi turgidis, obscure reticulatis, apice late rotundatis, later- 
aliter apiculatis. 
A scandent shrub, the branches terete, smooth, dark-colored, 
glabrous, somewhat pruinose when dry, armed with short re- 
flexed spines at the nodes. Leaves about 20 cm long, the rachis 
with short retrorse spines at the nodes, griseous-puberulent as 
are also the rachises of the pinnae ; pinnae about 10 pairs, 4 to 6 
cm long ; leaflets 10 to 14 pairs, narrowly oblong, glabrous, dark- 
brown when dry, about 1 cm long, 3 to 4 mm wide, apex rounded, 
usually retuse and sometimes with a minute apiculus, base inequi- 
lateral, rounded, the lamina extending farther along the petiolule 
