mi, 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 
386, 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 ; 
ovario 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 upper 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 
