62 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. 
to ‘65 in. long and ‘5 in. in diam. Seeds 1 to 3, thickly discoid, bi-concave with 
grooved edge, rugulose. Hook. fil. & Th. Fl. Br. Ind. i. 60; Mig. Fl. Ind. Bat, i. 
pt. 2, 48; Kurz For. Fl. Burm. 1. 35; King in Journ. As, Soc. Bengal 61, pt. 2, 49. 
Singapore,—Lo0bb, Ridley. Perak,—<ing’s Collector, Scortechint; common. ? Burmah 
(in Tenasserim),—Lobd, 
This is a rare plant in Burmah, if indeed it occurs there at all. The leaves 
of some of the Perak specimens have petioles *5 in. long, but usually they are as 
above described. | 
Puate 85. Unona stenopetala, H. f & Th. 1, Flowering branch; 2, twig with 
flowers and fruit; 3, fascicle of flowers; 4, single flower (from another specimen) ; 
5, andro-gyneecium and sepals—of natural size; 6 & 7, anthers; 8 & 9, pistils—-enlarged. 
12. Polyalthia, Plume. 
Trees or shrubs with the habit of Unona. Sepals 3, valvate or sub-imbricate. Petals 
6, 2-seriate, ovate or elongated, flat, or the inner slightly vaulted. Torus convex. Stamens 
cuneate; anther-cells extrorse, remote. Ovaries indefinite; style usually oblong; ovules 
1-2, basal and erect, or sub-basal and ascending. Ripe carpels 1-seeded, berried. 
Distrib.—Tropical Asiatic species about 45; African species 38; Australasian species 2. 
Secr. I.—Monoox. Ovule solitary, usually basal, erect. 
Flowers from the axils of the leaves or of fallen leaves, not from the 
trunk. 
Flowers solitary. 
Leaves under 5 in. in length (7 in. in P. Swmnatrana), more or less 
lanceolate. 
Leaves not glaucous underneath ; petals ovate, acute. 
Bark of branches hypertrophied . . . - .... XL 
suberosa. 
Ny 
Bark of branches not hypertrophied. 
Nerves of leaves 8 or 9 pairs, none of the petals’ 
sub-orbicular. ; 
Leaves thinly coriaceous, quite glabrous . . 2 P. dumosa. 
Leaves membranous, pubescent, at least when 
VOUS te ae Ce es ec us 2580 Eh COraSDinEs: 
Nerves of leaves 10 or 12 pairs; inner petals sub- 
OPDICQWINE tn 5 te es Fla. on eo x Be Be, Pe perncesona: 
Leaves very glaucous beneath; petals linear-oblong, obtuse. 
Hine carpels smboths. ©. sien Gy i ss 8. Pu Ay portend 
Ripe carpels vertically ridged . . . . . «+ «. © 6. PB. sumatrana. 
Leaves over 5 in. in length (see also No. 7), not glaucous. 
Flowers axillary. 
Petals more or less narrowly lanceolate. 
Leaves ovate-lanceolate, glabrous; ripe carpels oblong, ‘ 
‘Hinoteat enol onl 604 ih eo ck a eo ts . P. andamanica. 
