158 Flora of the Malayan Peninsula. 



the fruit ; if more than one compressed, ellipsoid ; hilum conspicuous ; 

 testa usually crustaceous, shining ; embryo straight, exalbuminous with 

 fleshy cotyledons, or albuminous with flat cotyledons ; radicle inferior, 

 usually small. — Disteib. About 320 species, in the tropical regions of 

 the whole world, genera about 24. 



Oalyx-lobes 1-seriate, imbricate ; stamens 5 to 6 : — 



Staminodes none . . . . . . . . . . . . . . 1. Chrysophyllum. 



Staminodes present : — 

 Flowers sessile or in panicles . . . . . . . . . . 2. S.^ecospekma.. 



Flowers in axillary fascicles . . . . . . . . . . 3. Sideroxylon. 



Calyx-lobes 2-seriate, outer series valvate : — 

 Calyx segments 4 : — 

 Seeds albuminous : — 



Stamens 8 4. Isonandra. 



Stamens 12 or more . . . . . . . . . . . . 5. Payena. 



Seeds exalbuminous, stamens 12 or more . . . . . . 6. Bassia. 



Calyx segments 6 to 8 : — 



Staminodes none, seeds exalbuminous . . . . . . . . 7. Palaquium. 



Staminodes present, seeds albuminous . . . . . . . . 8. Mimusops. 



1. Chrysophyllum, Linn. 



Trees with milky juice. Leaves coriaceous, glabrous or pubescent 

 on the under- surface, main-nerves usually very many, thin ; stipules 

 none. Flowers small, in axillary fascicles, usually hermaphrodite. 

 Calyx 5-7-lobed ; lobes subequal, imbricate. Corolla tubular-cam- 

 panulate or sub-rotate, 5-7-lobed ; lobes imbricate, entire. Stamens 

 equal in number with, and opposite to, the corolla-lobes, attached 

 to the tube or the base of the lobes ; filaments subulate or filiform ; 

 anthers ovate or triangular, extrorse or laterally dehiscing ; staminodes 

 none. Ovary villous, 5-, rarely 6-7-celled, style glabrous ; ovules one 

 in each cell, attached to the central placenta. Fruit a fleshy or 

 coriaceous berry, globose, 5-celled or less by abortion. Seeds large ; 

 testa very hard, dull or shining ; hilum conspicuous ; embryo as large 

 as the seed, erect, cotyledons flat in fleshy albumen, radicle inferior. — 

 DisTBiB. About 60 species, chiefly tropical American, a few only in 

 Asia, Africa and Australia. 



Chrysophyllum Eoxburghii, G. Don Gen. Syst. IV. 33 (1837). 

 A slender, erect tree reaching 40 to 60 ft. in height, evergreen ; branches 

 horizontal ; bark smooth, grey ; young branchlets and innovations 

 ferruginous-pubescent. Leaves coriaceous, glabrous, alternate ; oblong- 

 lanceolate, suddenly caudate-acuminate at the apex which is some- 

 times obtuse, cuneate at base and unequal, undulate on the margins ; 

 •3 to 6 in. long, 1-25-2 in. broad; midrib slender, prominent 

 368 



