ini. C.2 Merrill: Neiv Species of Bornean Plants 91 



long, very densely setose with slender, somewhat appressed, pale, 

 slenderly acuminate, sparingly ciliate setae up to 2.5 mm in 

 length, the bracts usually two, narrow, 5 mm long or less, densely 

 setose. Sepals about 7 mm long, elliptic to oblong-elliptic, ob- 

 tuse, the outer ones very densely setose with setae similar to 

 those on the pedicels, the inner ones narrower, setose only on 

 the exposed parts, their margins thin, glabrous. Ovary ovoid, 

 glabrous; style arms 3, about 3 mm long, wholly united for the 

 lower 3 mm. 



British North Borneo, probably from the Tawau River region, Villamil 

 S86, July 13, 1917. 



This species is readily recognized by its diverse indumentum, consisting 

 of pubescence, appressed lanceolate scales, and spreading, pale, sparingly 

 ciliate setae; its axillary, solitary or paired flowers; and its very densely 

 setose pedicels and sepals. It is perhaps most closely allied to the Sumatran 

 Saurauia setigera Korth. It is named in honor of Mr. D. M. Matthews, 

 conservator of forests, British North Borneo. 



SAURAUIA MYRMECOIDEA sp. nov. 



Frutex, ramulis et foliis utrinque et inflorescentiis perspicue 

 tenuiter curvato-patule setosis, setis usque ad 5 mm longis ; foliis 

 chartaceis, oblongo-ellipticis ad oblongo-obovatis, usque ad 30 

 cm longis, acuminatis, basi acutis ad obtusis, margine irregula- 

 riter dentatis et perspicue curvato-setosis, breviter petiolatis, 

 nervis utrinque 10 ad 15, valde perspicuis; cymis axillaribus, 2 

 ad 3.5 cm longis, fasciculatis vel subfasciculatis, laxis, bracteis 

 subfiliformibus, 5 ad 9 mm longis, setosis; sepalis ellipticis ad 

 oblongo-ellipticis, 5.5 mm longis, obtusis, extus perspicue setosis ; 

 ovaiio glabro, stylis 3, infra leviter connatis. 



A shrub, all parts conspicuously setose with slender, curved, 

 spreading, pale-brownish bristles up to 5 mm in length. 

 Branches setose, the young branchlets densely so. Leaves charta- 

 ceous, olivaceous or brownish-olivaceous above, much paler be- 

 neath, oblong-elliptic to oblong-obovate, 20 to 30 cm long, 8 to 

 11 cm wide, acuminate, base acute to obtuse, the margins ir- 

 regularly dentate, conspicuously setose-ciliate ; lateral nerves 10 

 to 15 on each side of the midrib, impressed on the upl)er surface, 

 prominent beneath, ascending, curved, anastomosing, the reticu- 

 lations subparallel, prominent; the upper surface with scattered 

 setae, the lower with similar but more numerous setae confined 

 to the midrib, nerves, and reticulations; petioles densely setose, 

 1 to 1.5 cm long. Cymes axillary, subfascicled, 2 to 3.5 cm long, 

 prominently setose, rather few-flowered, the bracts subfiliform, 

 setose, 5 to 9 mm long, the pedicels 8 to 10 mm long. Sepals 



