176 NEW OR NOTEWORTHY BORNEAN PLANTS. 
nearly so; outer three petals oblong-ovate to ovate, acute or obtuse, 
4 to 4.5 cm. long, 2 to 2.3 cm. wide, the concave basal part rather 
conspicuously appressed-ferruginous-pubescent outside, 5 to 7 mm. 
long and wide; inner petals oblong-elliptic, 3.5 to 4 cm. wide, 
somewhat narrowed below to the concave basal part which is 6 
to 7 mm. long, 3 mm wide. Amnthers numerous, 2.5 mm. long, the 
connectives truncate-rounded. Carpels about 12, glabrous, narrow- 
ly oblong, narrowed upward, 2 mm. lang; style thicker than the 
ovary, equalling it in length, thickly club-shaped, the apex obtuse. 
Disk densely ferrugious-hirsute. 
British North Borneo, Batu Lima, Bur. Sci. 1366 Ramos, 
October, 1920. In damp forests at low altitudes. The striking 
characters of this species are its large, broad petals and its usually 
1-flowered inflorescences. 
Artabotrys trichopetalus sp. nov. 
Frutex scandens, ramis rugosis, glabris, ramulis leviter pubes- 
centibus; foliis coriaceis, oblongo- ellipticis, -10-17 cm. longis, 
apice obtuse acuminatis, basi plerumque rotundatis, supra elabris, 
castaneis, subtus brunneis, leviter longe ciliatis, nervis utrinque 9 
vel 10, subtus perspicuis ; inflorescentiis lateralibus, paucifloris, 
pedunculis crassis, teretibus, 1.5 cm. longis, subglabris ; floribus 
circiter 3 cm. longis, pedunculis 2-bracteatis, bracteis elliptico-ovatis, 
1 cm. longis, extus dense ciliatis, intus glabris; sepalis petalisque 
dense ciliatis pubescentibusque ; sepalis 12 mm. longis, acuminatis : 
petalis exterioribus planis, 10 mm. latis, oblongo- ellipticis, interior1- 
bus lanceolatis, 5 vel 6 mm. latis, crassissimis; antheris 3 mm. 
longis, connectivo crassissimo, obtuso, 1-1.5 mm. longo; carpellis 
circiter 25, glabris. 
A woody vine, the branches grayish-brown, glabrous, 3 to 4 mm. 
in diameter, rugose when dry. Leaves coriaceous oblong-elliptic. 
10 to 17 em. long, 4 to 7 em. wide, the upper surface castaneous 
when dry, glabrous, somewhat shining, the lower surface brown, 
more or less ciliate with long, rather pale, subappressed hairs, 
the individual hairs often 2 to 83 mm. in length and more numerous 
on the midrib and nerves, otherwise widely scattered ; apex blunt- 
acuminate, base usually rounded sometimes: acute; lateral nerves 9 
or 10 on each side of the midrib, somewhat ascending arched-anas- 
tomosing, prominent on the lower surface, the reticulations lax, 
rather distinct: petioles 5 to 9 mm. long, when voung more or less 
pubescent, ultimately glabrous. Inflorescences lateral, from the 
branches among or below the leaves, few-flowered, the peduncles 
very stout, strongly curved and terete, up to 1.5 am. long, glabrous 
or nearly so, rugose. Flowers greenish, about 3 cm. long, their 
pedicels up to 1.5 cm. long, very densely ciliate with long ferruginous. 
hairs, each supplied with 2 conspicuous, elliptic-ovate, coriaceous, 
somewhat acuminate bracts about 1 cm. long which are densely 
ciliate and pubescent outside, glabrous inside. Sepals coriaceous, 
ovate-lanceolate, acuminate, about 12 mm. 6 to 17 mm. wide, 
Jour. Straits Branch 
