530 The Philippine Journal of Science 1922 
wide, the apex subtruncate and slightly retuse; stamens 20, the 
anthers oblong, 2.5 mm long. Ovary ovoid, glabrous; styles 3, 
free, 3 to 3.5 mm long. 
British North Borneo, Sandakan, Agama 569, August 4, 1918. 
In flat country of the Suanlamba River valley at low altitudes. 
This species resembles Saurauia acuminata Merr., but its in- 
dumentum is very different, the setae being much shorter and 
_ appressed; the cymes much longer; and the styles free to the 
base. 
RINOREA Aublet 
RINOREA CASTILLOI sp. nov. § Pentaloba. 
Arbor parva, novellis inflorescentiisque minute pubescentibus 
exceptis glabra; ramis pallidissimis, ramulis sulcatis vel com- 
pressis; foliis chartaceis, oblongis ad oblongo-ellipticis, 20 ad 
30 cm longis, basi angustatis, acutis, apice acuminatis, margine 
minute et distanter glanduloso-serrulatis, nervis utrinque cir- 
citer 15, perspicuis; inflorescentiis axillaribus, solitariis vel 
fasciculatis, racemosis vel depauperato-paniculatis, paucifloris, 
quam petiolis brevioribus; sepalis late ovatis, rotundatis, leviter 
pubescentibus, circiter 3.5 mm longis. 
A tree about 8 m high, entirely glabrous except the minutely 
pubescent tips of the growing branchlets, the stipules, and the 
sparingly pubescent inflorescences. Branches very pale, terete, 
sparingly lenticellate, branchlets compressed or sulcate. Leaves 
chartaceous, rather pale when dry, oblong to oblong-elliptic, 20 
to 30 cm long, 7 to 11 cm wide, subequally narrowed to the acute 
base and to the somewhat acuminate apex, the margins entire 
or minutely and distantly glandular-serrulate; lateral nerves 
about 15 on each side of the midrib, conspicuous, the reticulations 
distinct on both surfaces, subparallel; petioles 2 to 3 cm long; 
stipules lanceolate, slenderly acuminate, about 7 mm _ long, 
minutely pubescent, somewhat keeled and longitudinally striate. 
Inflorescences sparingly pubescent, racemose or depauperate- 
paniculate, 2 cm long or less, solitary or few in each axil. Flow- 
ers perfect, their pedicels about 4 mm long; bracts ovate, acu- 
minate, somewhat keeled, about 2 mm long; bracteoles similar to 
the bracts but much smaller, 1 mm long or less. Sepals 5, about 
3.5 mm long, broadly ovate to reniform-ovate, rounded, slightly 
pubescent. Petals ovate, glabrous, rounded, 3 mm long (not 
quite mature). Stamens about 1.8 mm long, the filaments very 
short, the dorsal appendage of the connectives broadly ovate, 
obtuse, brown, 1 mm long, the terminal appendages of the anther 
cell 0.56 mm long, linear or linear-lanceolate. Ovary ellipsoid, 
