3l6 122. EUPHORP.IACEAE 



Several species yield timber or are used in medicine. Claoxylon Juss. 



Styles many-cleft. Stamens 3 — 12. Flowers dioecious. Slirubs. Stip- 

 ules spiny 56 



56. Disc of the female flowers consisting of numerous, more or less ciliate 

 scales ; also 3 staminodes present. Sepals of the female flowers broad. 

 Ovary 3-celled. Fruit a 3-celled capsule. Female flowers in pendulous 

 spikes. — Species i. Southern West Africa. . . Poggeophyton Pax 



Disc of the female flowers consisting of 2 narrow scales ; no staminodes. 

 Fruit a drupe. Female flowers in clusters. — Species 8. Central 



Africa Erythrococca Benth. 



57- (35-) I^isc of the female flowers formed of 3 petal-like scales. Styles 

 recurved, appressed to the ovary, united at the base, 2-cleft. Ovary 

 3-celled. Stamens 3. Anthers 4-celled. Flowers dioecious, the male 

 ones in spikes, the female solitary or 2 — 3 together. Leaves pinnately 

 nerved. — Species 3. West Africa. Yielding timber. 



Hasskarlia Baill. 



Disc absent. Styles erect or spreading. Flovv'ers in spikes, racemes, or 

 panicles 58 



58. Calyx of the female flowers 3 — 5-partite. Stamens numerous. Anthers 



4-celled. Ovary 2 — 3-celled. Styles long and thin, 2-parted. Seed- 

 coat leathery. Trees or shrubs. Inflorescence spicate or racemose. — • 



Species 3. Central Africa Cleidion Blume 



Calyx of the female flowers entire or shortly toothed. Connective not 

 prolonged. Ovary i — 2-, rarely 3-celled. Styles undivided, usually 

 short and thick. Seed-coat crustaceous. Leaves usually palmately 

 nerved. (See 26.) Macaranga Thouars 



59. (12.) Corolla present in the male flowers 60 



Corolla absent in the male flowers 66 



60. Flowers in corymb- or panicle-like inflorescences composed of C5^mes, 



nearly always monoecious. Stamens 5 or more, all or the outer opposite 

 the petals, all or the inner united below. [Tribe J ATROPHE AE.] . 61 

 Flowers solitary or in clusters or panicles, dioecious. Stamens free, but 

 often inserted on a stalk-like process of the receptacle. Shrubs or 

 trees. [Tribe CLUYTIEAE.] 62 



61. Flowers dioecious. Petals free. Stamens 16—17, the five outer nearly 



free, the inner irregularly united. Seeds without an outgrowth. Leaves 



undivided. — Species 2. East Africa Neojatropha Pax 



Flowers monoecious. Stamens in 2 — 6 whorls, usually 8 — 10. Seeds with 

 an outgrowth at the hilum. — Species 50. Central and South Africa ; 

 two species cultivated and naturalized in the tropics. Several species 

 yield gum, oil, and medicaments ; some are poisonous or used as garden- 

 or hedge-plants Jatropha L. 



62. Stamens 5. Male flowers with a rudimentary pistil. Petals free. Flowers 



sohtary or in clusters in the axils of the leaves. Leaves undivided. . 63 



