ON THE FLOEA OF BOENEO. 101 



oblong elliptic, obtuse, 2 to 2.5 mm. long. Stamens 8, two- 

 seriate, all included, the upper four anthers about one-half as 

 long as the lower four, the filaments slender, distinct. Ovary 

 oblong, about 3 mm. long, glabrous, narrowed upward, the 

 style about 0.5 mm. long, the stigma capitate; disk-scales 

 linear, distant in pairs, about 1 mm. long. 



British North Borneo, Mount Kinabalu, Marai Spur, 

 Clemens 11075, December 1, 1915, in an open place above the 

 cave. Apparently referable here is a sterile specimen, Clemens 

 s.n., from the same general locality, which differs from the 

 type in having its leaves up to 7 cm. in length. 



MELASTOMATACEAE. 

 Dissochaeta, Blume. 

 Dissochaeta glabra, sp. nov. § Disparistemones, sect. nov. 



Frutex scandens, glaber; foliis chartaceis, nitidis, superi- 

 oribus oblongis vel oblongo-ellipticis, basi acutis vel rotundatis, 

 inferioribus majoribus, usque ad 15 cm. longis et 10 cm. latis, 

 ovato-ellipticis, basi leviter cordatis, 5- vel obscure 7-nerviis, 

 apice abrnpte acuminatis; paniculis terminalibus, usque ad 25 

 cm. longis, multinoris ; floribus 4-meris, calyci truncato ; 

 ■petalis circiter 3.5 mm. longis; staminibus 8, valde inaequali- 

 bus, antlieris majoribus antice breviter biappendiculatis ap- 

 pendicibus circiter 1 mm. longis, postice breviter appendi- 

 culatis; minoribus (sterilis) antice appendicibus 2 flliformibus 

 circiter 3.5 mm. longis instruetis. 



A scandent glabrous shrub, or the younger parts of the 

 inflorescence very slightly and obscurely furfuraceous. 

 Branches subolivaceous, smooth, terete, or the younger ones 

 slightly compressed. Leaves opposite, chartaceous, brittle 

 when dry, olivaceous, shining, glabrous, prominently and 

 abruptly acuminate, the upper ones smaller than the others, 

 oblong to oblong-elliptic, base subacute to rounded, the lower 

 ones ovate-elliptic, slightly cordate, up to 15 cm. long and 10 

 cm. wide, all 5- or obscurely 7-nerved, entire, the longitudinal 

 and transverse nerves prominent; petioles 1.5 to 2 cm. long, 

 their margins somewhat tuberculate. Panicles terminal, 

 ample, narrowly pyramidal, about 25 cm. long, the branches 

 opposite, distant, the lower ones about 11 cm. long. Flowers 

 white, 4-merous, in 3- to 5-flowered umbels at the tips of 

 the ultimate branchlets, bracts and bracteoles none, the pedicels 

 2 to 3 mm. long. Calyx about 3.5 mm. long, 2.5 mm. in 

 diameter, base acute, apex truncate, very obscurely 4-denti- 

 culate, the limb produced about 1.5 mm. Petals 4, inequi- 

 laterally obovate, about 3.5 mm. long, subacute. Fertile 

 stamens 4, their filaments flattened, about 5 mm. long, the 

 anthers almost S-shaped, as long as the filaments, somewhat 



U. A. Soc, No. 76, 1917. 



