86 ON THE FLORA OF BORNEO. 



cordate, apex rather prominently acuminate, the lower surface 

 sparingly hirsute on the midrib and lateral nerves, the upper 

 glabrous; lateral nerves about 6 on each side of the midrib, 

 prominent, curved-ascending; petiolules 5 to 7 mm. long. 

 Eacemes axillary, solitary or fascicled, slender, up to 20 cm. 

 in length, sometimes with one or two branches forming a 

 depauperate panicle, 1 to 4 in each axil, rather densely ferru- 

 ginous-pubescent and with long, stiff, scattered hairs inter- 

 mixed, the nodes prominently thickened. Flowers dark-purple, 

 about 4 cm. long, their pedicels densely ferruginous-pubescent, 

 up to 1.5 cm. long, each with a pair of orbicular-ovate, round- 

 ed, 4 to 5 mm. long, deciduous bracteoles at the apex. Calyx 

 in bud somewhat cup-shaped, in anthesis broad, oblique, up 

 to 1.4 cm. wide, the upper lobe distinct in bud, nearly obsolete 

 in anthesis, the two lateral ones inequilateral, ovate, rounded, 

 about 2 mm. long, the lower one oblong to triangular-ovate, 

 obtuse, about 5 mm. long, outside densely ferruginous-pubes- 

 cent and supplied with numerous long, stiff, brown, stinging 

 hairs. Standard glabrous, orbicular, 2.5 cm. in diameter, 

 rounded, base shallowlv cordate, the claw stout, short, about 

 2 mm. long, twice as wide. Wings oblong, 4 cm. long, 1.4 cm. 

 wide, rounded, the claw 4 to 5 mm. long, the basal auricle 

 ovate, rounded, 3 mm. long, the back and margins in the lower 

 10 to 12 mm. pubescent, otherwise glabrous. Keel about as 

 long as the wings, about 6 mm. wide, glabrous, somewhat 

 curved-falcate above, the tip cartilaginous, acuminate, the 

 claw about 6 mm. long, the auricle ovate, rounded, about 2 

 mm. long. Ovary oblong, densely covered with stiff, ferru- 

 ginous, stinging, appressed hairs; style hirsute. Young pods 

 oblong, flattened, about 7 cm. long and 3 cm. wide, densely 

 ferruginous-pubescent, and supplied with very numerous stiff, 

 ferruginous, stinging hairs 2 to 3 mm. in length, the sutures 

 narrowly winged throughout their length, the valves flat, plain, 

 with no transverse plaits. 



British North Borxeo, Mount Kinabalu, Kiau, Cle- 

 mens 10085 (type), 1001^9, November, 1915, Topping 1561, 

 November 2, 1915, in thickets, altitude about 1450 meters. 



A very characteristic species manifestly belonging in the 

 group with 3Iu curia acuminata, Grab., but with an entirely 

 different inflorescence. In its vegetative characters it ap- 

 proaches Mucuna biplicata, T. & B., but belongs to quite an- 

 other section of the genus, the valves having no transverse 

 plaits. 



RUTACEAE. 

 Tetractomia, Hooker f. 

 Tetractomia obovata, sp. nov. 



Frutex usque ad 2 m. altus, glaber, vel inflorescentiis 

 parcissime pubescens; foliis coriaceis, obovatis, usque ad 



Jour. Straits Branch 



