OF MT. KINABALU AND BRITISH NORTH BORNEO, 17 
JAMBOSA RUFO-TOMENTOSA, Gibbs, sp. nov. 
Arbor. Ramuli teretes, in sicco rugosi, cinerascentes, rufo-pilosi. Folia 
opposita, petiolata, elliptico-oblonga, acuminata, basi cordata, nervis subtus 
prominentibus fulvo-tomentosis, nervo intramarginali flexuoso conspicuo, 
supra fulvo-virescentia, subtus pallide ochracea, punctulata, punetis subtus 
conspicuis. Panicule cymose, terminales vel axillares, paucifloræ, rhachi 
brevi crassa terete, floribus 5-20 confertis. Pedicelli breves, sub calyce 
articulati, apice bracteolis 2 minutis trigonis instructi. Alabastrum elongato- 
obconicum, paullum turbinatum ; lobi 4, rotundi, ampli, imbricati, æquales. 
Stylus elongatus. Ovarium biloculare, multiovulatum. 
Hab. Apin Apin to Tambunan, 1500-2000', in open and sec. forest. Fl. 
Feb. 2990, 3017, bis. 
The leaves of this plant are dull on the upper surface and lighter under- 
neath in the natural state, and they vary from 5'5 cm. to 2 dm. in length 
and 2 to 4 em. in breadth. The inflorescence as a rule is not dense, the 
small eymes being mostly trichotomously disposed. The entire cyme is 5 cm. 
long, including the peduncle, which is 2 em. long, the primary rays being 
1 em. and the secondary 5 cm. in length ; the middle flower is sessile in each 
trichotomous eyme. The calyx narrows down into the pedicel, the tube 
being 2 cm. long and 7 mm. broad, with lobes 4 mm. in length, concave- 
rounded, and reflexed in fruit. The large white petals are clawed, with 
a concave, gland-dotted limb, hairy on the outer surface, about 2 cm. long 
and T8 mm. broad, the claw being 4 mm. in length and 3 m. in breadth. 
The longest filaments are 2-2 em. and the anthers 1 mm. long. The style is 
3:5 em. in length. 
This plant is conspicuous from the rufous brown tomentum, which clothes. 
the stem, petioles, peduncles, pedicels, and calyx. In this respect it cannot 
be compared with any known species of Jambosa. It has been collected by 
Haviland in Sarawak (Herb. Mus. Brit., Haviland, 992, “small tree, hairs 
on calyx. White. 5-6 ft. high.”’). 
T found it fairly common in the interior between Apin Apin and Tambunan 
and also between Tambunan and Korikot, where it grows in the open. The 
leaves and flowers are smaller and the latter denser and more aggregated, 
with lateral cymes in the axils of the leaves immediately subtending the 
terminal cyme, while the rufous hairs are not so long or thick. That is the 
case with most of the following numbers of Haviland’s at Kew, which are 
apparently referable to this species, vize, 970 (calyx pink, petals and stamens 
white) ; 3380 ; 992 (hairs on calyx red or pale, 10 ft. tall) ; 1698. In the 
forest this species 1s semi-scandent, as is so often the case with tropical 
plants, sending long flexible branches through the surrounding foliage, and 
its cymes have fewer and larger flowers. This state is shown in my 
no. 3017, which consists only of a few flowers and buds put up in 
