XIII, C, 2 
Merrill: New Species of Bornean Plcmts 
97 
tomous. Flowers pale-yellowish, in mature bud narrowly oblong- 
ovoid, acute or obtuse at both ends, about 8 mm long, 5-merous, 
their pedicels 5 mm long or less, the bracteoles ovate, acute, 
about 1 mm long. Calyx-segments oblong-ovate, obtuse, up to 
2.5 mm in length. Petals thin, attached at the top of the 
perianth-tube, oblong, obtuse, 2 to 2.5 mm long. Stamens 5, 
the anthers subsessile, narrowly oblong, acuminate, 6 mm long. 
British North Borneo, Sandakan, Agama U37, August 31, 1917, on the 
inner edge of swamps along the Sapagaya River at about sea level. 
This species is allied to Adenia acuminata (Bluxne) King, from which 
it is especially distinguished by its more numerously nerved leaves. The 
leaves are distinctly larger than are those of the Javan Adenia macrophylla 
(Blume) Koord. 
FLACOURTIACEAE 
RYPAROSA Blume 
RYPAROSA OLIGOPHLEBI A sp. nov. 
Arbor circiter 5 m alta, subglabra; foliis oblongo-obovatis ad 
oblongo-oblanceolatis, usque ad 17 cm longis, chartaceis, breviter 
et abrupte acuminatis, basi acutis, subtus pallidis, nervis utrin- 
que 2 vel 3, curvato-adscendentibus, subtus prominulis; infruc- 
tescentiis lateralibus, usque ad 7 cm longis; fructibus ovoideis 
ad subellipsoideis, circiter 3.5 cm longis, glabris, in siccitate 
minute verruculosis ; seminibus circiter 6. 
A tree about 5 m high, nearly glabrous, the very young branch- 
lets sparingly appressed-pubescent, inflorescences and flowers 
not seen. Branches terete, reddish-brown, glabrous. Leaves 
chartaceous, oblong-obovate to oblong-oblanceolate, 10 to 17 cm 
long, 4 to 6 cm wide, the apex abruptly and rather shortly obtuse- 
acuminate, base acute, the upper surface more or less olivaceous 
when dry, the lower pale-grayish; lateral nerves 2 or 3 on each 
side of the midrib, the nerves curved-ascending, very prominent 
on the lower surface, obscurely anastomosing, the reticulations 
rather lax; petioles 1.5 to 2 cm long. Infructescences lateral, 
up to 7 cm in length, each bearing from 3 to 5 fruits. Fruits 
ovoid to subellipsoid, brown when dry, glabrous, the pericarp 
minutely verruculose, irregularly and coarsely wrinkled, about 
3.5 cm long, 2.5 to 3 cm wide, apex subacute. Seeds usually 6. 
British North Borneo, Kalabakan, Villaynil 263, September 21, 1916, 
in forested valleys and on gentle slopes, altitude about 30 meters. 
This species is strongly characterized by its few-nerved leaves. In its 
6-seeded fruits it approaches Ryparosa kunstleri King of the Malay Penin- 
sula, but is not otherwise closely allied to that species; most of the species, 
so far as the fruits are known, have but one- or two-seeded fruits. 
L 
