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o04 XXV. DiPTEROCARPE^. (W. T. Thiselton Dyer.) {Swrea. 



by the bases of tlie accrescent calyx-segments 3 or more rarely all of which 

 are developed into 10-veined linear wings. G^^tifledom fle?liy, unequal, 

 usually inclosing the superior radicle. Distrib.— Tropical Asia and Indian 

 Archipelago ; species about 40. 



Sect. I. Pentacmei A. DC. AntJiers linear, valves cuspidate. 



1. S. siamensls, Miq. Ann, Mm. Bot i. 214; A. DC. Prodr. xvi. 

 2,631. Pentacme m^vi^.A.DC. Ic. 626. P. siarnensis, Kurz m Journ. 

 Asiai. Soc. £eng, 1870; 2, 66. Hopea (Shorea?) suava, Wall. Cat. 959. 



Martaban, WaUich; Tenassekim, at Moulmeinj Lobb; Pegu, Kurz.— Distrib. 



Siara. • V I, V 



A blirub 10 ft., leafless during inflorescence ; bvanchlets with smooth greyish bark. 

 Leaves 5-6 by 3 4 in., oblong or ovate-oblong, obtuse or subacute, base truncate or 

 cordate, glabrous above and beneath, lateral nerves 15 pairs, scarcely promment; 

 petiole 1-1 J in. Panicles 6-9 in., axillary and terminal, lax, branches divancate; 

 pedicels i in. Flowers sweet-scented. Calyx-segments J in., ovKte, acute, glabrous, 

 margins ciliolate. Petals -f^ in., pale citron colour. Stamens 15, filaments very short; 

 anthers J in. \on%, lobes slii^htly unequal, connective with a subulate prolongation, nlti- 

 niateiy bent outwards. Style ^ in., filiform. Capsule indebiscent, ovoid; pedicel 

 dilated; bases of fruiting calyx-segments ovate, thickened, glabrous; wings 3 id-» 

 linear-oblanceolate, obtuse, 7-nerved. — 0^ Hopea suavis, Kurz, Andamans Report,! 

 have only seen leaves. They do not belong to this species. 



Sect. IL Antlters oblong, valves obtuse. 



-\ 



* Stamens 12-15. 



2. S. stellata, Dyer; calyx-segments equally developed into wings or 

 2 sliglitly shorter. Parashorea stellata, Eurz in Journ. Asiat Soc. Jieng* 

 1870,2, 66. 7 * 



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apiculate 



ficurely dilated base | in. long, strongly 7 nerved, puberulous.— The subeqiialaccrescence 

 of the sepals occurs also in S. rohmta, and appears to me of no value as a gen 

 distinction. ^ 



** Stamens 15. 



I 



+ Flowers pedicelled. 



3. S. floribunda, Kurz, ms; leaves rather narrowly-oblong shorty 

 acuminate, panicles terminal or lateral from the axils of fallen leav^ 

 flowers rather crowded, calyx-segments narrowly deltoid-ovate g^^^*; - 

 dark-coloured S. robiista, A. DC. Prodr. xvi. 2, 628 {not of Goertn.). -Hof 

 floribunda, Wall. Cat. 964, 



J g 



Tenasskkim, at Tavoy, Gomez. . , ^.^y^ 



GhibrouH; branchlets with pale brown bark. Leaves about 3i by ^'^^}^''^^\o\e 

 mature at the time of flowering, base rounded ; lateral nerves about 15-20 Vf^^'^ .^^tt 

 J-l in. Pdiceh i in. Fbwers rather larger than in S. Talura. C'a/^J^^^y ^j^- 

 glabrrms, ciiiolate. Anthers with a very long seta.— Fruit unknown, but ^t^^^/ ujch 

 next species are evidently closely allied. It has nothing to do with S. robus% to w 

 A. De Candolle can haverefeiTed it only through some contusion of specimens. ^. 



\,f- S. Talura, Hoxh. Ilort. Beng. 93; Fl. Ind. iL 618 ; leaves elliptic „ 

 oblong to ovate- elliptic, panicles terminal or lateral from the ajcils 





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Martaban, Brandis; Birma, yr-Mr;s. 



A large glibrons tree. Leaves 4^ by IJ in., ovate or lanceolate, acute or apiculate. 

 Fkncers in panicles of cymose racemes, white. Capsule f in. long, obovoid, tawny 

 tomeutose; wings 4i by | in., linear-oblanceolate, obtuse, tapering to a ^^^y ^ ^ 



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