193- SAPOTACEAE 423 



13. Sepals united to above the middle. Anthers opening inwards. Staminodes 



lanceolate or ovate. Styles very long, with a very small stigma. Seeds 



exalbuminous. Trees. Leaves lanceolate. — Species 3. Central 



Africa. (Including Stironcurnm Radlk.) . . . Synsepalum A. DC. 



Sepals free or united at the base. Anthers opening outwards. ... 14 



14. Staminodes awl-shaped. Ovary 2 — 4-celled. Seeds 2 — 4, connate, albu- 



minous. Spiny trees. Leaves lanceolate. — Species i. Morocco. 



Yields timber (iron-wood) and oil. . . Argania Roem. & Schult. 



Staminodes more or less petal-like, or short and broad. Ovary usually 



5-celled. Seeds separate or solitary 15 



15. Staminodes more or less petal-like. Seeds albuminous, with leaf-like 



cotyledons. — Species 20. Tropical and South Africa, Canary Islands, 

 and Madeira. Some species yield timber, edible fruits, or medicaments. 

 (Including Calvaria Commers. and Sapota A. DC.) . . Sideroxylon L. 

 Staminodes small, broad. Seeds exalbuminous, with thick cotyledons. 

 (See 10.) Sersalisia R. Br. 



16. Calyx 5 — 6-parted. Corolla 5 — 6-lobed. Ovary 10 — 12-celled. Ovules 



attached by the base. Fruit 4 — 12-seeded. Seeds ovoid, compressed, 

 with a narrow hilum, albuminous. Flowers solitary. — Species i 

 {A. Sapota L., sapodilla-plum). Cultivated in the tropics. Yields a 

 guttapercha-like resin, edible fruits, and medicaments. (Under Sapota 



Plum.) Achras L. 



Calyx 8 — lo-parted. Corolla 8 — lo-cleft or -parted. Ovary 8 — lo-celled. 

 Ovules attached by the middle. Fruit i — 4-seeded. Seeds globular, 

 with a broad hilum, exalbuminous. Flowers in clusters, clothed with 

 rusty-brown hairs. — Species i {B. Parkii Kotschy). Central Africa. 

 Yields timber, a guttapercha-Hke resin, edible fruits, and a fat (shea- 

 butter) from the seeds. {Bassia L.) . . . Butyrospermum Kotschy 



17. (4.) Sepals 5, unequal, spirally arranged. Fertile stamens 15, 20, or 



more ; staminodes 5 or more. Ovary 9 — 30-celled. Style cone- or 



club-shaped. [Subtribe omphalocarpinae.] 18 



Sepals 4 or 6, nearly equal, whorled. Stamens 12 or 16, all fertile. Anthers 

 opening outwards. Style awl-shaped. [Subtribe illipinae.] . . 19 



18. Stamens 15, united in 5 bundles. Anthers opening outwards. Ovary 



lo-celled. Style club-shaped. Petals 5, white. Sepals red. Flowers 

 solitary or few together in the axils of the lower, sometimes fallen leaves. 



— Species i . Equatorial West Africa (Cameroons) . Tridesmostemon Engl. 

 Stamens 20 or more, free. Anthers opening inwards. Style cone-shaped. 



Flowers springing from the old wood. — Species 13. West Africa. 

 They yield timber and a sort of guttapercha. Omphalocarpum Beauv. 



19. Sepals 4. Petals 8. Stamens 16. Ovary 10 — 12-celled. Seeds albumin- 



ous. — Species i. Cultivated in the tropics. Yields guttapercha. 



Payena A, DC. 

 Sepals 6. Petals 6. Stamens 12. Ovary 6-celled. Seeds exalbuminous. 



— Species 2. Cultivated in the tropics. Yielding guttapercha. 



Palaquium Blanco 



