New or Noteworthy Bornean Plants 
Je Neal fe 
By Etmwer D. Merritt. 
Director, Bureau of Science, Manila. 
This account of Bornean plants is continued from page 201 
of the Journal for this year, No. 85. 
LEGUMINOSAE. 
Derris Loureiro. 
Derris pachycarpa sp. noy. 
Frutex scandens, glaber (floribus ignotis) ; ramis lenticellatis : 
foliis 20-—30 cm. longis, foliolis 7 vel 9, elliptico-ovatis vel oblongo- 
subcaudato-acuminatis, nervis utrinque circiter 10, tenuibus; in- 
fructescentiis 10—18 cm. longis; leguminibus brunneis, nitidis,. 
laevibus, oblongis vel oblongo-ellipticis, inflatis, 4.5—7 em. longis, 
2.2—3.5 em. latis, usque ad 1 cm. crassis, suturis superioribus 
anguste crasseque alatis vel carinatis, inferioribus rotundatis vel 
obscurissime carinatis; seminibus solitariis, oblongo-ellipsoideis vel 
vblongis, 2.5 cm. longis, 
A scandent woody vine apparently glabrous (flowers un- 
known), the branches brown or reddizh-brown, lenticellate, smooth 
or somewhat rugose, the branchlets somewhat angled or compressed 
when dry. Leaves 20 to 30 em. long; leaflets 7 or 9, elliptic-ovate- 
to oblong-elliptic, chartaceous, smooth, shining, brownish-olivace- 
ous, the lower surface somewhat paler than the upper, 7 to 12 cm. 
long, 3 to 6 em. wide, the apex conspicuously and rather abruptly 
acuminate, the acumen often subcaudate, blunt, up to 1.5 em. long, 
base rounded: lateral nerves about 10 on each side of the midrib, 
slender, not prominent, the reticulations obscure; petiolules 7 to- 
9 mm. long. Infructescences 10 to 18 cm. long. Pods oblong to 
oblong-elliptic, inflated, brown, smooth, shining, 4.5 to 7 em. 
long, 2.2 to 3.5 em. wide, up to 1 em. thick, the upper suture nar- 
rowly and very thickly winged or carinate, the lower one rounded 
or very obscurely carinate, the upper wing at most 3 mm. wide. 
Seeds solitary, oblong-ellipsoid or oblong, 2.5 cm. long. 
British North Borneo, Batu Lima, near Sandakan, Ramos 
1250 (type), 1257, October, 1920. In thickets and in forests at 
low altitudes. A species well characterized by being entirely gla- 
Jour. Straits Branch. 
