98 ON THE FLOEA OF BOENEO. 



British Xorth Borneo, Kalabakan watershed, Villamil 

 2JfS, October 8, 1916, in forests, altitude 50 meters. 



Grewia stylo car pa, Warb. is a characteristic species of 

 very wide distribution in the Philippines, and the above form 

 comes well within its range of variation except in its longer 

 petioles and its basal glands not being bearded. The fruits 

 of the Bornean form are slightly larger than in most of our 

 Philippine specimens, and regarding it Villamil writes : " fruit 

 yellow when ripe, with a sour taste exactly like susumbik (i.e. 

 Grewia stylocarpa) of the Philippines." 



Columbia, Persoon. 



Columbia borneensis, sp. nov. 



Arbor circiter 10 m. alta, ramulis hirsutis atque pilis stel- 

 latis obtectis; foliis oblongo-ovatis, subcoriaceis, in siccitate 

 fragilibus, pallidis, usque ad 10 cm. longis, tenuiter acuminatis, 

 basi plus minusve inaequilateralibus, rotundatis, margine in- 

 tegris vel distanter denticulatis, supra costa nervisque exceptis 

 glabris, subtus densissime minute pallide stellato-puberulis, 

 pilis majoribus stellatis subferrugineis intermixtis, nervis 

 lateralibus utrinque circiter 6, prominentibus, adscendentibus ; 

 fructibus obovoideis, 1 ad 1.5 cm. longis, brunneis, ciliato- 

 hirsutis. 



A tree about 10 m. high, the branches and branchlets 

 terete, dark-brown, more or less hirsute with slender spreading 

 simple hairs intermixed with much shorter stellate ones. 

 Leaves alternate, subcoriaceous, rather pale when dry, brittle, 

 oblong-ovate, 5 to 10 cm. long, 2.5 to 3.5 cm. wide, sharply 

 acuminate,- base more or less inequilateral, rounded, rarely 

 somewhat cordate, one side usually about twice as broad as 

 the other, margins entire or distantly denticulate, the upper 

 surface glabrous except the somewhat pubescent midrib and 

 nerves, the lower pale, very densely and minutely grayish 

 stellate-puberulent, with larger, subferrugineous, stellate hairs 

 intermixed, the base 3-nerved; lateral nerves above the basal 

 pair 4 or 5, all ascending, prominent; petioles hirsute and 

 stellate-pubescent, up to 5 mm. in length. Panicles terminal, 

 hirsute and stellate-pubescent, the lower branches up to 6 cm. 

 in length. Fruits obovoid, 1 to 1.5 cm. long, dark-brown 

 when dry, ciliate-hirsute especially on the cocci, the wings 

 nearly glabrous, apex retuse, base subacute. 



British North Borneo, Khota Balud to Kibayo, trail 

 to Mount Kinabalu, Clemens 9786, October 28, 1915. 



The first representative of the genus reported from Borneo, 

 characterised by its rather small, nearly entire leaves. 



Jour. Straits Branch 



