mi. c, 2 Merrill: New Species of Bornean Plants 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 U87, August 31, 1917, on the 

 inner edge of swamps along the Sapagaya River at about sea level. 



This species is allied to Adenia acuminata (Blume) 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 OLIGOPHLEBIA 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, Villamil 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. 



