504 NATURAL IlISTORY OF PLANTF!. 



23. Chisocheton Bl.^ — Flowers hermaphrodito or polygamo- 

 dio3cious (nearly of Dasycoleiim), oftener 4-merous ; calyx small 

 dentate. Petals liuear-elougate, coherent in slender sometimes sub- 

 clavate tube, subvalvate or more or less imbricate or contorted at 

 apex. Stamens 5-8 ; tube cylindrical elongate, at base oftener 

 adnata to corolla, 5-8-fissus at apex ; lacinise alternate with elongate 

 anthers." Germen short, 2-4-locular, enclosed in short cylindrical 

 not adnate disk ; style slender erect, apex stigmatose capitate ; 

 ovule in cells 1. Capsule coriaceous, loculicidally 2-4-valvate; 

 valves septiferous ; seeds subpeltate, more or less enclosed in aril 

 springing from ventral hilum ; cotyledons of fleshy embryo sub- 

 peltate. — Glabrous or pubescent trees ; leaves abruptly pinnate ; 

 flowers in axillary or supra-alary full compound very ramose racemes.^ 

 {Southern India, Malaga.*) 



III. SWIETENIE^. 



24. Swietenia L.- — Plowers hermaphrodite regular ; calyx 5-fid, 

 imbricate. Petals 5 longer, oftener contorted, patent. Stamens 10 ; 

 filaments connate in urceolate petal oid tube ; anthers inserted in 

 hollows of tube, introrse apiculate, 2-rimose. Germen sessile, 

 surrounded by annular disk ; cells 5, oppositipetalous; style short 

 erect, apex stigmatose, discoid S-radiate ; ovules in cells co , inserted 

 in 2 series in internal angle, descendent. Fruit capsular, septicidal 

 from base; valves 5, free from 5-goual axis and 5-alate base, 2- 

 lamcllate. Seeds oo descendent, imbricate in 2 series, long and 

 broadly alate above ; chalaza lateral ; hilum impressed at apex of 

 wing traversed by raphe; cotyledons of t)-ansverse fleshy embryo 

 more or less conferruminato with each other and with fleshy albumen ; 

 radicle short. — A very tall glabrous tree ; wood coloured odorous ; 

 leaves alternate abruptly pinnate ; leaflets opposite petiolulate oblique 

 at base; flowers in axillary and terminal compound ramose-cymiferous 

 racemes. [Central continental and iusid. America.) Seep. 478. 



' Bijilr. 163. — A. Juss. 3!-':!inc. 73. — B. H. other points, very near Das'icoUuin, diflfering 



Oeii. 333, n. 10. — Scliiznchiton Spiieno. Syst. chiefly in the n.ature of its disk. 

 Ciir. Post. 251. — Endi,. Gm. n. 5530. ■• Spec. 6, 7. Miq. Fl. Iml.-Bat. i. p. ii. 537 ; 



2 The ma.ssos of pollen often, as in Saxi/- Suppl. i. 196. — Tvrcz. Bull. Mosc. (1858), i. 



ofcfoH, cati'iiately siiprrpoi-ed disiinct. 411. — H. B.v. Aihiiii,Ohia,xi. 200. — W.\Li'. A''/;. 



'•' A genus, by the form of its ilowors and i. 129 ; Ann. vii. 555. 



