92 The Philippine Journal of Science ins 



subequal, elliptic to oblong-elliptic, setose, obtuse, 5.5 mm long. 

 Corolla lobes oblong, about 6 mm long, scarcely retuse. Ovary 

 glabrous ; styles 3, about 3 mm long, slightly united below. 



Sarawak, Selungo, Lio-Matu, and Mount Merinjak, Native collector 

 2838 (type), 2797, 2579 Bur. Sci., November, 1914, flowers white. 



This species is remarkable for its numerous, slender, curved setae, which 

 occur on both surfaces of the leaves, branches, petioles, inflorescences, and 

 calyces, as well as by its subfiliform bracts. It is apparently allied to 

 Saurauia horrida Hook, f., which, among other characters, differs in 

 having the leaves glabrous on the upper surface. Two of the three speci- 

 mens present runways or homes of ants constructed of a black brittle 

 substance and debris, extending along both sides of the midrib on the 

 lower surface of the leaves, whence the specific name. 



SAURAUIA OBLANCEOLATA sp. nov. 



Frutex erectus, partibus junioribus exceptis glaber; foliis 

 oblanceolatis, chartaceis vel subcoriaceis, usque ad 35 cm longis, 

 basi attenuatis, apice breviter acuminatis, margine calloso-serra- 

 tis, utrinque glabris, laevis, nervis utrinque circiter 20, perspi- 

 cuis; floribus axillaribus, fasciculatis, tenuiter pedicellatis ; se- 

 palis subaequalibus, ovatis ad elliptico-ovatis, 4.5 ad 5 mm longis, 

 rotundatis, parcissime pubescentibus ; fructibus junioribus glo- 

 bosis, leviter pubescentibus; stylis 3, liberis. 



An erect shrub, the older parts entirely glabrous, the growing 

 tips of the branchlets sparingly appressed-setose, the very young 

 leaves (when but 1 to 2 cm long) very densely and uniformly 

 appressed-setose on both surfaces. Leaves oblanceolate, charta- 

 ceous to subcoriaceous, 20 to 35 cm long, 4 to 8 cm wide, smooth 

 and glabrous on both surfaces, the upper surface dark-brown, 

 the lower pale-brown when dry, shining on both surfaces, grad- 

 ually narrowed to the attenuate base, the apex somewhat rostrate- 

 acuminate, the margins callose-serrate ; lateral nerves about 20 

 on each side of the midrib, prominent, curved-ascending, anas- 

 tomosing, the reticulations lax, distinct; petioles about 2 cm 

 long. Flowers axillary, fascicled, their pedicels slender, up to 

 1.5 cm long, glabrous or slightly pubescent, each with two or 

 three, small, oblong-elliptic, obtuse, 1 to 1.5 mm long bracts below 

 the middle. Sepals subequal, ovate to elliptic-ovate, rounded, 

 4.5 to 5 mm long, slightly pubescent. Young fruits globose, 

 sparingly pubescent. Styles 3, free, 4 mm long. 



British North Borneo, Khota Balud to Kibayo, Mount Kinabalu, Mrs. 

 Clemens 978U, October 28, 1915, "flowers and fruits white." 



This species is well characterized by its oblanceolate, entirely glabrous, 

 elongated leaves, and its fascicled flowers. It does not appear to be espe- 

 cially closely allied to any previously described form. 



