122. EUPHORBIACEAE ßll 



12. Calyx of the male flowers with valvate or closed aestivation. [Especially 



tribe ACALYPHEAE. | 13 



Calyx of rhe male flowers with imbricate or open aestivation. • • • 59 



13. Corolla present in the male flowers 14 



Corolla absent in the male flowers 24 



14. Petals of the male flowers more or less united. Rudimentary pistil cup- 



shaped or wanting. Style-branches 2. Flowers dioecious. Hairy 



undershrubs, shrubs, or trees 15 



Petals of the male flowers free from each other, but sometimes {Caperonia) 

 adnate to the staminal tube ; in this case rudimentary pistil club- 

 shaped and style with many branches 17 



15. Petals united high up. Calyx bursting irregularly. Disc of 5 glands 



alternating with the petals. Stamens 12 — 20. Rudimentary pistil 

 absent. Climbing shrubs with reddish-brown hairs. Leaves 3 — 7- 

 nerved. Flowers in panicles. — Species 5. West Africa. Fibre- 

 yielding plants Manniophyton Muell. Arg. 



Petals united at the base only. Calyx 4 — 5-parted. Stamens 4 — 5. 

 Undershrubs or trees 16 



16. Flowers 4-merous. Anthers turned inwards. Disc within the stamens. 



Trees. Leaves 3-nerved. Young shoots with rusty-brown hairs. 

 Flowers in panicles. — Species i. West Africa (Cameroons). 



Schubea Pax 



Flowers 5-merous. Anthers turned outwards. Glands alternating with 



the stamens ; a cupular disc also present within them. Undershrubs. 



Young shoots with white hairs. Flowers in axillary clusters. — Species 



I. East Africa (Somaliland) Gilgia Pax 



17. Style many-cleft. Rudimentary pistil of the male flowers club-shaped. 



Stamens 5 — 10, united below. Petals adnate to the staminal tube. 

 Disc indistinct. Flowers in racemes. Herbs or undershrubs, usually 

 hispid. — Species g. Tropics. Several species yield fibre. 



Caperonia vSt. Hil. 



Style 2 — 4-cleft. Rudimentär}' pistil of the male flowers 2 — 3-cleft or 



wanting 18 



18. Stem herbaceous or woody at the base only, hairy or cottony. Flowers in 



racemes, monoecious. Male flowers without a disc. — Species 7. North- 

 ern and tropical Africa. Some are poisonous or yield dyes and medica- 

 ments. " Turnsole." (Toumesolia Scop.) . . Chrozophora Neck. 

 Stem woody. Male flowers usually with a disc reduced to separate glands. 



19 



19. Young branches and leaves clothed with scales. Inflorescence spicate or 



racemose. Flowers dieocious. Stamens 15 — 20. — Species 12. West 



Africa Crotonogyne Muell. Arg. 



Young branches and leaves glabrous, downy, or clothed with star-like 

 hairs. Inflorescence spicate, racemose, or paniculate ; in the two 

 former cases stamens b — i^ 20 



