NEW OR NOTEWORTHY BORNEAN PLANTS. 329 
STERCULIACEAE. 
Sterculia Linnaeus. 
Sterculia trichepetiolata sp. nov. 
Frutex circiter 2 m. altus, petiolis densissime ferrugineo- 
hirsutis exceptis glaber vel subglaber : ramuls cireiter 5 mm. 
diametro; folis oblanceolatis vel oblongo- oblanceolatis, chartaceis, 
utrinque glabris nitidisque, 27—42 cm. longis, tenuiter caudato- 
acuminatis, deorsum gradatim angustatis, basi acutis, nervis utrin- 
que 18—20, subtus valde perspicuis ; stipulis membranacels, anguste 
oblongo-lanceolatis, 1.5—2 cm. longis, margine ciliatis; yaniculis 
glabris, circiter 25 cm. longis, ramis patulis, inferioribus 5 em. 
longis, bracteis caduceis, 6—10 mm. longis: floribus ¢ circiter 11 
mm. longis, extus glabris, lobis trianeulari- ovatis, acutis, erectis vel 
patulis, haud coherentibus, 4 mm. longis, intus hirsutis; antheris 
10; folliculis oblongis, 5—8 em. longis, rostrato-acuminatis, extus 
densissime ferrugineo-pubescentibus, intus glabris. 
A shrub about 2 m. high, glabrous or nearly so except the very 
densely ferruginous- hirsute, somewhat thickened petioles, the ul- 
timate branches brownish, terete, glabrous, sparingly lenticellate. 
about 5 mm. in diameter. Leaves crowded at the apices ot the 
branchlets, oblanceolate to oblong-oblanceolate, chartaceous, olivace- 
ous, glabrous and shining on both surfaces, 27 to 42 cm. long, 6 to 
12 cm. wixle, the apex slenderly caudate-acuminate, gradually nar- 
rowed below to the acute base; lateral nerves 18 to 20 on each side 
of the midrib, somewhat curved, arched- anastomosing, very prom1- 
nent on the lower surface as are the lax primary reticulations: 
petioles about 1 cm. long, very densely hirsute with stiff spreading 
ferruginous hairs 2 to 3 mm. in length ; stipules Ae es a 
‘narrowly oblong-lanceclate, obtuse or acuminate, 1.5 to 2 em. long, 
about + mim. wide, their margins ciliate, otherwise glabrous or near- 
ly so. Panicles glabrous, in the uppermost axils; in anthesis about 
25 cm. long, the branches spreading, the lower ones about 5 cm. 
in length, when young the primary branches subtended by mem- 
branaceous, oblong-ovate to lanceolate, caducous bracts, 6 to 10 
mm. in length. Staminate flowers about 11 mm. fong, glabrous 
outside, the tube somewhat cup-shaped, about 6 mm. long, rounded 
or obtuse at the base, the lobes 5, triangular-ovate, acute, erect or 
spreading, not at all cohering, hirsute inside, about 4 mm. long. 
Anthers about 10, 1.2 mm. long, the globose head about 2.5 mm. 
in <iameter, the glabrous androphore 2 mm. in length. Follicles 
oblong, 5 to 8 cm. ‘long, about 2 cm. wide, very densely ferruginous- 
pubescent externally, glabrous internally, rostrate-acuminate, base 
narrow, the pericarp subcoriaceous. Seeds 2 to 5, dark-brown, 
ellipsoid, about 12 mm. long. 
British North Borneo, Batu lima, near Sandakan, Ramos, 1702 
(type), Agama 1030, November, 1920. On steep forested slopes 
at low altitudes. A species belong in the group with Sterculia 
Re Ae Soes No. 86 1922. 
