440 Flora of the Malayan Peninsula. 



the sides, marked with prominent leaf-scars. Leaves chartaceous ; 

 ternately verticillate, oblong-lanceolate or elliptic-lanceolate ; shortly 

 and abruptly acuminate at apex, cuneately attenuate at base for 

 nearly half their length ; light green above, pale and glabrous or 

 sparsely brown-pubescent, especially along the nerves beneath ; margins 

 slightly recurved ; 5 to 12 in. long, 1'5 to 3 in. broad ; midrib slender ; 

 main nerves 20 to 24 pairs, parallel, starting at about 65° with the 

 midrib and curving upward to meet in a very faint looped intramarginal 

 nerve close to the edge, raised beneath ; secondary nerves none ; reticu- 

 lations transverse, indistinct ; petiole stout, "5 to 1 in. long, when 

 young slender, base enlarged. Inflorescence pseudo-terminal, sessile ; 

 peduncles about 6 to 10, slender, 1 to 2 in. long, simple or occasionally 

 branched, bearing spreading, many-flowered, 2- to 3-chotomous cymes ; 

 bracts none ; bracteoles minute, ovate-acute ; pedicels slender ; cyme- 

 branches pedicels and calyx minutely grey-pubescent ; flowers yellowish- 

 white ; buds cylirLdric-clavate. Calyx-tuhe short, "03 in. long ; lobes 5, 

 ovate-acute, pubescent without, glabrous within except at the tips. 

 Corolla-twhe cylindrical below, slightly dilated above, glabrous without, 

 sparsely pubescent within below the stamens, mouth contracted, "15 in. 

 long ; lobes oblong, rounded, folded in bud and overlapping to the 

 right, as long as the tube, ciliate on the edges and villous at the base 

 within. Stamens inserted at the top of the corolla-tube ; anthers lan- 

 ceolate, apiculate, rounded below ; filaments short ; pollen spherical. 

 Disk annular, -025 in. deep. Ovary glabrous, ovoid, acute ; carpels 2 ; 

 ovules very many ; style slender ; stigma cylindric, bifid. Fruit of two 

 pendulous follicles reaching 18 in. in length, about -1 to '2 in. in thick- 

 ness, terete. Seeds peltate, on narrow, ribbon-like placentas, oblong, 

 rounded below, slightly bifid and acute above, bordered by tawny hairs 

 which are short at the sides and long plumose, up to "3 in., at the ends ; 

 testa very thin, papillose ; albumen rather thick ; cotyledons oblong, 

 small ; radicle as long as cotyledons. A. DC. Prodi'. VIII. 409 ; 

 Hook. f. Fl. Br. Ind. III. 643 ; Miq. Fl. Ind. Bat. II. 438. A. costata, 

 Wall. Cat. 1649, not of Br. 



Penang: Wallich 1648, 1649; Maingay (K.D.) 1066/2, 1070/2; 

 Curtis 378; King's Collector 1637, 1732, 1733. — Distrib. Borneo, 

 Phihppines, New Guinea. 



6. Alstonia angustifolia. Wall. Cat. 1650 (1829). A tall tree; 

 branchlets dark brown, somewhat quadrangular and channelled, stout. 

 Leaves nearly coriaceous, ternately whorled or opposite ; obovate or ob- 

 lanceolate, obtusely abruptly acuminate at apex, long cuneately attenuate 

 at base for about half their length ; glabrous and green above, pale 

 and glabrous or when young pul)escent beneath ; margins slightly 



