Journal of the Federated Malay States museums - Sabrizain.org

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H. N. Ridley: Botany of Gunong Tahan. 153
have withered and the style has attained its full development,
and strikes the abdomen beneath as the stamens previously did.
The humble bees, Bombi, are by no means common in the
Malay Peninsula, and are practically, it appears, confined to
this and a few other of our mountains and Tenasserim. The
flower of the Hedyotis seems to be specially suited for pollination
by the humble bee, and it may be suggested that its
peculiar modification is a special adaptation for pollination by
this insect.
70. [Hedyotis rivalis, n. sp.
A branched weedy plant, about 2 J to 3 feet tall. Stem j\j
inch through, half woody with a pithy centre, subquadrangular,
with four narrow ribs running from the basal angles of the
stipules. Leaves linear, acuminate, acute, base narrowed
gradually to the petiole, glabrous, subcoriaceous, drying
yellow-green, 3^ inches long, ^ inch wide or less, glabrous.
Stipules broadly triangular, mucronate, scurfy, \ inch long.
Inflorescence axillar}^ and terminal of dichotomous cymes an
inch long with a few flowers on short pedicels at the base ;
cyme-branches half an inch long with about 3 flowers in each
cymule, lower cymes rebranched. Bracts small, linear, acute.
Flowers small, white, ^ inch long, very shortly pedicelled.
Calyx small, campanulate, with 5 rather large ovate-lanceolate
pubescent green lobes longer than the tube. Corolla-tube
cylindric. glabrous, twice as long as the calyx-lobes, ribbed;
lobes oblong-acute, pubescent, recurved, as long as the tube.
Stamens 5, adnate to the mouth of the tube; anthers linearoblong,
just protruding at the tips. Style stout, stigmas
elliptic, rather large. Disc pulvinate. Capsule ovoid, pale,
^ inch long, crowned with the persistent calyx-lobes. Seeds
minute, very irregular in form, acutely angled, black, reticulate.
On rocks at Jeram Ampai, Tembeling River.]
71. Urophyllum glabrum, Wall. In the Teku woods,
apparently not common. I did not see the plant here, but
below Wray's Camp, 3,300 feet alt., I found a remarkable
plant of the Griffithianum form which was a tall bush, like an
elder bush, with a stem 4 inches through at the base, and strict
erect branches, all covered with pale corky bark. The rest of
the plant was quite indistinguishable from the ordinary slender
shrub, which is little or not branched from the base and with
smooth green or brownish thin bark.
The species is common all over the Peninsula and most
of the Malay islands.
*72. TiMONius MONTANUS, Ridl. Op. cit. p. 312. Common
on the Padang. A slender treelet like T. jambosella, but with
smaller leaves and slender flowers. The fruit is very distinct,
being small, narrowly ovoid, narrowed to the apex, ^ inch
long, and black. Endemic.
73. Webera stellulata, var? A shrub only obtained
in fruit may perhaps belong to this species. It was found in
the Teku woods.