82 
CONTRIBUTIONS TO A FLORA OF BORNEO. 
obtuse, 7 mm. long. Outer petals ovate lanceolate obtuse, 
2 cm. long, 1 cm. wide. Inner petals smaller and narrower. 
Anthers numerous, with rounded appendage. Pistils hairy. 
Sarawak, five miles from Kuching (Haviland, 410). 
Not clearly allied to any species known to me, but 
perhaps nearest to P. congregata, King, or its allies, 
though the flowers are borne on the branches and not 
on the trunk. Their densely woolly hairy covering all 
over, except the stamens, is peculiar. 
Polyalthia coriacea, n. sp. 
A small tree. Leaves coriaceous glabrous except the 
midrib on both surfaces and the nerves beneath, hairv 
elliptic, obtuse to oblong, shortly acuminate, base broad 
rounded ; nerves, twenty pairs, depressed above, elevated 
beneath parallel; secondary nerves transverse, elevated 
parallel, 21-42 cm. long, 10-16 cm. wide; petiole stout, 
1 cm. long, closely hairy. Flowers in a short raceme ; 
peduncle thick, hairy, 1 cm. or less long, with ovate bracts 
all rufous, hairy; pedicels 2-3 cm. long. Sepals tri¬ 
angular, acute or acuminate, tomentose outside, 6 mm. 
to 2 cm. Petals “yellow” (Haviland), “cream-colour” 
(Brooks), 4 cm. long, 1 cm. wide, oblong obtuse. Pistils 
hairy. Torus semiovoid, hairy. Carpels cylindrie, shortly 
beaked, velvety, shortly stalked, 4 cm. long, 2 cm. in 
diameter. 
Sarawak : Mt. Buan limestone (Haviland, 2002) ; Bidi 
(C. J. Brooks, 1057). 
This is allied to P. congregata, King, but differs in 
possessing a distinct petiole to the leaves, which are some¬ 
what stiffer, a short raceme and smaller flowers. 
Brooks’s plant differs from Haviland’s in its much larger 
leaves acuminate shortly at the tip, and larger distinctly 
acuminate sepals. I have little doubt that they belong to 
the same species. The flowers are borne on the trunk of 
the tree as in P. congregata, &c. 
Polyalthia nervosa, Boerl., Ic. Bogor. lxviii. 
Borneo (Teysmann). 
Var. Nieuwenhuizii , Boerl., 1. c. 
Central Borneo (Jaheri). Not seen. 
Polyalthia ( Monoon ) submitrata, Miq., 1. c., 16. 
S. Borneo : Muara Kurran (Korthals). Not seen. 
