372 159- FLACOURTIACEAE 



37. Stamens 15 — 20. Styles 4. Sepals 4, unequal. Flowers unisexual, 



solitary, axillary. — Species i. Equatorial West Africa (Cameroon?). 



Trichostephanus Gilg 



Stamens 5 — 12. Style i, simple or cleft at the top. Fruit a capsule. 



Seeds hairy or arillate. Leaves stipulate, usually gland-dotted. iTribe 



CASEARIEAE.] .38 



38. Flowers in terminal panicles, polygamous. Stamens 5 — 6. Seeds with 



a minute aril. — Species i. Equatorial West Africa (Cameroons). 



Ophiobotrys Gilg 

 Flowers solitary and axillary or in axillary fascicles or heads, herma- 

 phrodite. Stamens 6 — 12. — Species 20. Tropics to Delagoa Bay. 

 Some species yield timber or are used in medicine. {Gmdonia Plum.) 



Casearia Jacq. 



3q. Stamens collected in 5 — 8 bundles alternating with the sepal?. Sepals 



glandular, valvate in bud. Placentas 3 — 6, parietal, with nimierous 



ovules. Styles 3 — 6. Fruit a capsule. Seeds woolly. Lea\es entire 



or crenate, stipulate. Flowers in racemes, hermaphrodite. (See 31.) 



Calantica Tul. 

 Stamens not in bundles 40 



40. Anthers 10 — 15, linear, large, subsessile. Cal3^\ very small, imbricate in 



bud. Placentas 2, parietal, bearing 2 ovules each. Styles 2. Fruit 

 a nut. Seeds very large, arillate, exalbuminous. Embryo with a 

 minute radicle and very unequal cotyledons. Slirubs. Leaves without 

 stipules. Flowers in racemes or panicles, dioecious. - — Species 2. 

 Madagascar and neighbouring islands. Used medicinally. 



Physena Thouars 

 Anthers short and broad, more or less oval. Seeds albuminous. . . 41 



41. Ovary 2- or more-celled, with 2- — 4 subbasal ovules in each cell. Style i, 



simple. Stamens numerous, surrounding a thick disc. Fruit a prickly 

 nut. vSeeds ruminate within. Stipules connate. Flowers in cymes, 

 hermaphrodite. - — Species 5. Madagascar. {Ropalocarpus Boj.) 



Rhopalocarpus Boj. 



Ovary i-celled, sometimes incompletel}^ very rarely completely 2- or 



more-celled, with parietal or axile ovules ; if ovary 2- or more-celled, 



then styles 2 — 8, free or united at the base, and fruit a berry or a drupe. 



Seeds not ruminate. [Tribe FLACOURTIEAE.] 42 



42. Ovary incompletely, very rarely com.pletely 2- or more-celled. Styles 2 — 8, 



free or united at the base. Receptacle bearing a disc or free glands . ^3 

 Ovaiy completely i-celled. Style usually i. Stamens numerous. . . 44 



43. Flowers dioecious. Stamens 10^25, alternating with glands. Placentas 



with I — 6 ovules each. Fruit a berry. Stipules minute, deciduous. — 

 Species 17. Tropical and South Africa. Some have edible fruits. 

 [Dovyalis Arn. & Mey., including Ahcria Höchst.) Doryalis Arn. & Mey. 

 Flowers hermaphrodite or polygamous. vStamens numerous, surrounded 

 by a ring-shaped disc. Placentas with several or many ovules each. 



