RUTACE^. 189 



parated, bivalved. — ^Trees j leaves Opposite or whorhd, impari-pinnate orunifoUolate, devoid 

 i)f pellucid dots; flowers in oorynibiform, axillary, and terminal panicles ; calyx coloured. 



19. B. comocladifolia, Kth. Brancileta and petioles rusty-tomentose : leaves pin- 

 nate : leaflets 'o-W-jugal, laiiceolate-oblong, serrulate, penninerved, glabrous above,, tomen- 

 tose along the midrib beneath : serratures mucronulate ; corymbs subsessile, much exceeded ' 

 "by the leaves ; calyx yeUow, exceeded by the stamens'. — Humi. PI. 'Equin. i. 59. — Zantho- 

 "xylum Sumach, Macf. ! ifum Gr.). — A tree, about 20' high ; leaflets 3" long, 1" broad, 

 shortly petiolulate ; calyx tomentose, 5-partite, 1'" long ; stamens 10. — Hab. Jamaica !, 

 Macf., common in the higher mountains ; [Mexico !, Venezuela !, New Granada 1, Peru]. 



Tkibe III. SIMABUBEJE. — Stamens usually proceeding from an hypogynous scale. 

 Pericarp fleshy, rarely capsular. Testa membranaceous.— liCAves without pellucid dots. 



8. QUASSIA, L. 



Calyx 5-partite. Petals contorted, erect. Stamens 10, exserted, proceeding from a basi- 

 lar scale. Ovaries 5, distinct, uniovulate: style common, simple. Car'peis drupaceous. 

 Embryo exalbuminous : cotyledons semibvoid. — A low glabrous tree ; leaves impari-jiinnate : 

 ■petiole mnged ; flowers large. Crimson, in terminal racemes. 



20. Q. amara, L.f. — Desc. Fl.\. t. 5.— Leaflets 5, elliptical-oblong, pointed, quite 

 entire, tapering towards the base, subsessile at the pptiolar strictures ; calyx. 1'", petals 16'" 

 long: drupes biangular-ovoid, 4"'-6"' long, black, with a pale spot at the base : endocarp 

 crustaceous.^HAB. Trinidad!: Cr., introduced into Jamaica I, St. Vincent!; [Panama!, 

 Venezuela !, Guiana ! to Maranhao I]. 



9. SIMABA, Aubl. 



Calyx 4-5-partite. Stamens S-IO, included, proceeding from a long, emarginate scale. 

 Ovaries 4-5, distinct, uniovulate, inserted upon a gynophore : style common. Ca/rpids Bub- 

 -drUpaceous. Embryo exalbuminous, straight. — Leaves Annate, or temate, coriaceous : leaf- 

 lets quite entire. 



21. S. orinocensis, Kth. Leaflets 7-3, distant, spathulate, emarginate or blunt, glau- 

 cous beneath, glabrous ; flowers racemose : racemes peduncled, powdery, usually in a 

 -terminal panicle. — Kth. N. Gen. 6. t. 614.— S. guianensis. Planch. partim. — A tree; leaf- 

 lets 3"-14" long, subsessile, usually opposite ; flowers small, about 2'" long : calyx and 

 -ccirolla deciduous ; filaments as long as the oblong hairy scale ; ovaries as long as the gyno- 

 iphore : style short, simple. — Hab. St. Vincent I, &«»/«?. ; [Guiana!, equatorid Brazil!]. 



10. SIMARUBA, Aubl. 



Flowers dioecious. Calyx'h-ii.. Starnens 10, included, proceeding from a roundish . 

 scale. Ovaries 5, uniovulate : style 6-fid. Carpids drupaceous. Embryo exalbuminous : 

 cotyledons semiovoid. — Trees; leaves abruptly pinnate: leaflets multijugal, alternate, 

 petiolulate, deciduous, quite entire, coriaceous ; ^oviexi in few-flowered cymules; cymules 

 ■distant, in a spreadingjerminal panicle. 



22. S. aiuara, Aubl. Leaflets oblong or lanceolate-oblong, mucronale with a bluntish 

 point, green on both sides ; panicle exceeded by the leaves'; petals spreading. — Aubl. t. 832. 



, — S. officinalis, DC. — A high, tree; leaflets quite glabrous, or pubescent beneath. — Hab. 

 Dominica!, Imr., St. Vincent \, Anders.; [Guiana]. 



23. S. glauca, Kth. Leaflets spathnlate-oblong, or lanceolate, rounded at the top, 

 pale-glaucous beneath^ glabrous ; panicle nearly as long as the leaves ; petals spreading. — ■ 

 Desc. Fl. 1. t. 14. — S. officinalis, Ma<f. S. mediciuaUs, Endl. — A tree, about 20' high; 



calyx scarcely 1'" long ; petals 3'" long, yellow, oblong, blunt, contorted ; drupes biangular- 

 ovoid, dark-purple, diy, woody, 8"' long. — Hab. 3wa.sifis,\, M'Nab, Macf ., Al., March, 

 common in the mountain-woods ; [Cuba!, Florida !]. 



11. SPATHELIA, L. 

 FlotBers polygamous. Calyx 5-leaved, coloured. Stamens 5, alternating with the petals. 



