156 DR. O. STAPF ON THE FLORA OF MOUNT KINABALU. 
they are linear and obtuse, not rostrate, as in Driessenia avantha, Korth. Otherwise they 
agree in all essential points with the generic characters of Driessenia. The very minute 
glandular hairs, which are dispersed over both surfaces of the leaves in D. microthria, 
may be also found in D. glanduligera and D. axantha, but in a very limited number and 
only along the nerves. They consist of a stalk, formed by 3-5 cylindric cells, and of an 
ovoid or globose, slightly enlarged terminal cell, which secretes a viscid matter. In 
D. glanduligera, all parts of the plant are provided with small gland-bearing bristles, 
which are homologous to those on the coronula of the ovary of D. axantha, though these 
are rather reduced and very few in number. 
SONERILA TENUIFOLIA, Blume, in Flora, 1831, p. 491. 
Penokok, alt. 3500 feet (Haviland, 1283) ; at 6000 feet (Low). 
Distribution: Malaya, from Sumatra and Malacca to Borneo. 
SUNERILA CRASSIUSCULA, Stapf, n.sp. Herba monocarpica, basi lignescens, 7-9 poll. alta, 
interdum a basi ramosa. Caulis setulis crassiusculis adpressis plus minusve dense 
vestitus. Folia inequalia, majora pedunculo 13-2 lin. longo suffulta, ovato-oblonga, 
basi acuta vel subrotundata, apice acuta, argute serrata, crassiuscula, supra viridia, 
costulá setulis adpressis obsita exceptá glaberrima, subtus purpurascentia vel intense 
purpurea, in nervis et in parenchymate setulis brevibus crassiusculis arcte adpressis 
vestita, 3-nervia, nervis subtus tantum conspicuis; minora multo brevius pedicellata, 
ovata vel subrotunda, basi interdum subcordata, 2-3 lin. longa. Cymule 2- vel 1-florze, 
plerumque ad ramorum apices, pedunculo gracili glabro 3-6 lin. longo suffultze; 
pedicelli 22-4 lin. longi, sub anthesi graciles, demum incrassati, glaberrimi. Calyx 
breviter tubuloso-campanulatus, 2 lin. longus, glaberrimus, dentibus late obtuseque 
triangularibus, 3 lin. longis. Petala rosea (exsiccata alba), late obovato-elliptica, 
43—5 lin. longa. Stamina 3; antherz e basi biloba, ovate, acuminate, 24-3 lin. 
longe. Capsula turbinata, 34 lin. longa, ut in S. tenuifolia. 
At 9000 feet (Haviland, 1173); Burbidge. 
Nearest allied to S. tenuifolia, Blume, with which it has much in common, particularly 
in the shape and structure of the flower and of the capsule. The thick, almost fleshy 
leaves exhibit the same sharp serrature, and where the base is rounded or, in the smaller 
leaves, subcordate, a 4th or 5th basal nerve may be seen, although these nerves are 
always very faint. The leaves of each pair are—except on the uppermost internodes—very 
asymmetric, but a tendency towards this may be observed also in 5. tenwifolia. 
: Soueicoarees KINABALUENSIS, Stapf, n.sp. Herba monocarpica, subsimplex, 7-8 poll. alta. 
2i Caulis herbaceus, purpurascens, quadrangularis, minute pubescens et præterea 
= parce pilis minutis plerumque glanduligeris aspersus. Folia æqualia vel subæqualia, 
petiolo purpurascente, ¿-1 poll. longo suffulta, ovato-oblonga, 14-3 poll. longa, 
-~ &-1 poll. lata, basi late rotundata, interdum cordata sinu brevissimo angusto, apice 
E * sensim acuminata, minute crenulata, tenuia, utrinque minutissime verruculosa, 
ce _ supra glabra, subtus in nervis venulisque necnon in parenchymate pilis minutissimis 
