ON THE FLOEA OF BORNEO. 99 



THYMELAEACEAE. 



Wikstroemia, Endlicher. 



Wikstroemia dementis, sp. nov. 



Frutex usque ad 4 m. alius partibus junioribus inflores- 

 centiisque plus.miuusve adpresse pubescentibus exceptis glaber; 

 foliis membranaeeis, oblongo-ovatis, usque ad 9 cm. longis, 

 basi acutis, apice teuuiter acute acuminatis, uervis utrinque 7 

 ad 9, tenuibus, distinetis, aiiastoniosautibus ; inflorescentiis 

 terminalibus axillaribusque, breviter pedunculatis, subcapitatis. 

 3- vel 4-floris ; floribus circiter 1 cm. lougis, extus parce pubes- 

 centibus vel subglabris; ovario oblongo, glabro, stigmate sub- 

 sessile. 



A shrub or small tree about 4 m. high, the younger parts 

 and the inflorescence more or less appressed-pubescent with 

 pale hairs,- otherwise glabrous. Branches and branchlets 

 slender, terete, reddish-brown. Leaves membranaceous, ob- 

 long-ovate, 6 to 9 cm. long, 2 to 4 cm. wide, base acute, apex 

 slenderly and sharply acuminate, shining, greenish or brownish 

 when dry ; lateral nerves 7 to 9 on each side of the midrib, 

 slender, distinct, anastomosing, the reticulations rather dis- 

 tinct; petioles glabrous, 3 to 4 mm. long. Inflorescences 

 axillary and terminal, subcapitately 3- or 4-flowered, the 

 peduncles appressed-pubescent, 3 to 7 mm. long. Flowers 

 yellowish, the tube 1 cm. long, externally very slightly pubes- 

 cent or nearly glabrous, in one form distinctly pubescent, the 

 lobes 4, the outer two up to 3 mm. long, obtuse, oblong-ovate, 

 the inner two elliptic, somewhat shorter than the outer ones. 

 Anthers 8, 2-seriate, four inserted near the mouth of the tube, 

 four inserted 2 to 3 mm. below the throat. Ovary oblong, 

 glabrous, about 3 mm. long ; style very short ; stigma capitate. 

 Disk-scales 0.5 to 1 mm. long. 



British Xorth Borneo, Mount Kinabalu, Kiau, Clemens 

 9964, November 2, 1915 (type) ; Lobang, Clemens 10J+19, 

 November, 1915, a form with the perianth-tube rather pro- 

 minently pubescent. 



The alliance of this species is with the Philippine Wik- 

 stroemia ovata, Mey., from which it is distinguishable by its 

 shorter flowers and slenderly acuminate leaves. 



Wikstroemia acuminata, sp. nov. 



Frutex circiter 1.5 m. altus, inflorescentiis parcissime ad- 

 presse pubescentibus exceptis glaber; ramis ramulisque tereti- 

 bus, tenuibus, in siccitate rubro-brunneis ; foliis lanceolatis, 

 usque ad 15 cm. longis, chartaceis, tenuiter acute acuminatis, 

 basi acutis, supra subolivaceis, nitidis, subtus pallidis, sub- 

 albidis, nervis primariis utrinque circiter 10, indistinctis ; in- 

 florescentiis axillaribus terminalibusque brevissimis, ut videtur 



R. A. Soc, No. 76, 1917. 



