XIII, c, 2 Merrill: New Species of Bornean Plants 85 



the Malay Peninsula, and T. sylvatica (Vid.) Merr. of the Philippines. It 

 is readily distinguished from T. simplicifolia Mast, by its much fewer- 

 nerved leaves, from T. kunstleri King by its glabrous fruits, and from T. 

 sylvatica Merr. by its leaves not being densely lepidote beneath. 



DILLENIACEAE 



SAURAUIA Willdenow 

 SAURAUIA ACUMINATA sp. nov. 



Frutex circiter 2 m altus, ramis et petiolis et foliis supra 

 ad costa et margine et subtus perspicue tenuiter curvato-patule 

 setosis; foliis chartaceis, oblongis, tenuiter acute acuminatis, 

 basi obtusis ad leviter cordatis, usque ad 28 cm longis, nervis 

 utrinque circiter 20, subtus valde perspicuis ; inflorescentiis cau- 

 linis, cymosis, fasciculatis, circiter 5 cm longis; floribus nume- 

 rosis, bracteis linearibus, 5 ad 9 mm longis, setosis; sepalis 

 leviter inaequalibus, 6 ad 7 mm longis, extus setosis, oblongo- 

 ovatis ad oblongo-ellipticis, exterioribus acutis, interioribus. 

 obtusis ; f ructibus ovoideis, glabris ; stylis 3, infra connatis. 



A shrub about 2 m high, the branches, branchlets, petioles, 

 inflorescences, midrib on the upper surface, margins, and lower 

 surface of the leaves conspicuously setose with slender, curved, 

 spreading setae up to 5 mm in length, most of these parts also 

 pubescent, the setae brownish to purplish-brown when dry, 

 pink to deep-brown when fresh. Leaves chartaceous, oblong, 

 narrowed to both ends, 20 to 28 cm long, 7 to 9 cm wide, apex 

 slenderly and sharply acuminate, base narrowed, obtuse to ob- 

 scurely cordate, the upper surface grayish, somewhat shining, 

 smooth and glabrous except the setose midrib, the margins setose, 

 the lower surface conspicuously setose on the midrib, nerves, 

 and reticulations, and also somewhat pubescent; lateral nerves 

 about 20 on each side of the midrib, prominent on the lower 

 surface, curved, anastomosing, the reticulations subparallel, dis- 

 tinct; petioles 1.5 to 2 cm long. Cymes cauline, fascicled on 

 densely setose tubercles, about 5 cm long, densely setose and 

 pubescent, rather many-flowered, the bracts linear, setose, 5 to 

 9 mm long, the pedicels 4 to 7 cm long. Sepals oblong-ovate 

 to oblong-elliptic, 6 to 7 mm long, the outer two acute, densely 

 setose on the back, the inner ones slightly longer, obtuse, setose 

 on the exposed portions, but glabrous on the parts covered by 

 the imbricate outer sepals. Young fruit ovoid, glabrous ; styles 

 3, the arms about 2 mm long, united for the lower 1.5 mm. 



British North Borneo, Pinayas River, Villamil 220, October 2, 1916, 

 in forests along the river, altitude about 15 meters. 



