Protium BURSERACE^ 209 



stigma 5-lobed. Fruit of 2 carpels broadly ovate, 2 '2-2 '7 cm. 1., 1*5-2 

 cm. br. ; of 1 carpel ovate-eUiptical, 3-cornered 1-1 • 5 cm. br, 



P. Copal Eiigl. is a native of Mexico, There is a specimen in Herb. 

 Jliller in Herb. Mus. Brit, marked "Jamaica?" It differs from the 

 above species in the parts of the flowers being iu 4'p, in the oblong 

 apiculate leaflets, and in the lotj^er janicle to 12 cm. 1. with puberulous 

 rhachis. 



Family XLVIII. MELIACE^. 



Trees or shrubs, the wood of which is often hard, coloured, 

 and sometimes sweet-scented. Leaves alternate, without stipules, 

 generally pinnate, 3-foliolate in TricMlia polyneura, 2-pinnate in 

 Melia Azederach ; leaflets entire. Flowers rather small, pani- 

 culate. Calyx 4-5-lobed, imbricate. Petals 4-5, imbricate, 

 convolute or valvate in bud. Disk various, sometimes incon- 

 spicuous, sometimes ring-like, or more or less enclosing the 

 ovary ; in Cedrela the disk forms a column to which both the 

 petals and the filaments are attached half-way from the base. 

 Stamens 8-10 (in Cedrela 5), filaments attached outside the base 

 of the disk, united more or less into a tube ; anthers sessile or 

 shortly stalked, attached on the inside of the tube, in Cedrela 

 the filaments are distinct above the attachment to the column. 

 Ovary 2-5-celled. Ovules in each cell usually 2, collateral or 

 superposed, in Cedrela and Swietenia 8-12; raphe ventral; 

 micropyle superior. Fruit a capsule or drupe. Seeds with or 

 without endosperm. 



Species nearly 600, natives of warm regions of America and 

 Asia, rarer in Africa. 



Stamens more or less cohering to form a tube. 

 Leaves pinnate. Fruit a capsule. 



Seeds winged 3. Stvietenia. 



Seeds not winged. 



Capsule 3-2-valved or not opening. Leaves 



imparipinnate 1. TricMlia, 



Capsule 4-valved. Leaves pinnate 2. Guarea. 



[Leaves 2-pinnate. Fruit a drupe Mclia.'] 



Stamens and petals attached below to the column, free above 4. Cedrela. 



1. TRICHILIA L. 



Trees or shrubs. Leaves imparipinnate or (in T. polyneura) 

 3-foliolate. Panicles axillary, or terminal and axillary, many- 

 flowered. Calyx small with 5 or 4 teeth or segments. Petals 

 5 or 4, imbricate or valvate. Stamens 1 or 8 ; filaments united 

 at the base and more or less adhering above, united to the apex 

 in T. moschata ; anthers terminal. Ovary on a disk, 3-2-celled ; 

 ovules 2 or 1 , at the central angle of each cell ; stigma usually 

 IV. p 



