8l. ANONACEAE 205 



10. (4.) Petals tranversely folded, at least in the bud, united at the base, 



subequal. Carpels 3 — 12, hairy ; ovules numerous ; styles 2-cleft. — 



Species 6. Tropics. [Tribe HEXALOBEAE.] . Hexalobus A. DC. 



Petals not folded, usually free. [Tribe UVARIEAE.] ii 



11. Petals valvate in the bud. Carpels free. [Subtribe unoninae.] . . 12 

 Petals, at least the inner ones, imbricate in the bud. [Subtribe uvar- 



iiNAE.j 23 



12. Petals 3 — 4. Sepals or calyx-lobes 2. Connective of the stamens not or 



scarcely prolonged. Carpels and ovules numerous. Flowers uni- 

 sexual 13 



Petals 6. Sepals 3. Connective usually prolonged beyond the anther- 

 cells 15 



13. Petals 3, thick. Flowers in clusters springing from the old wood, the 



female somewhat larger than the male. Trees. — Species i. Equator- 

 ial West Africa (Congo; Thonnera De Wild. 



Petals 4 14 



14. Petals free. Flowers in clusters springing from the old wood, the female 



much larger than the male. Trees. — Species 2. Equatorial West 



Africa Tetrastemma Diels 



Petals united below. Flowers solitary, axillary, the female about as 

 large as the male. Shrubs. — Species i. Equatorial West Africa 

 (Cameroons) Uvariopsis Engl. 



15. Petals in i row, rather thick. Stamens 12, six of them sometimes sterile. 



Anther-cells ovate. Carpels numerous, i-seeded. — Species 2. West 



Africa (Congo) Monanthotaxis Baill. 



Petals in 2 rows 16 



16. Outer petals spreading, inner smaller and converging. — Species 30. Tropical 



and South-east Africa. (Including Clathrospermum Planch.) 



Popowia Endl. 

 Outer and inner petals spreading or erect 17 



17. Stamens 3 — 6 ; connective ovate, prolonged above, but not dilated. Car- 



pels 3, one-seeded. — Species i. Madagascar. . . Bocagea St. Hil. 

 Stamens numerous 18 



18. Stamens with an acuminate connective. Ovules several. Style short. 



Fruit shghtly constricted between the seeds. Trees, Flowers in 

 axillary clusters. ■ — Species i (C. odorata Hook. f. & Thoms., Ylang- 

 Ylang). Cultivated ir the tropics for its fragrant flowers, which yield a 



perfume CanangaRumph 



Stamens with a truncate or rounded connective IQ 



19. Style long. Ovules 2. Peduncles thick and hooked. Climbing shrubs. 



(See 9.) Artabotrys R. Br. 



Style short or wanting 20 



20. Ovules I — 2 to each carpel, rarely 3 — 8, and then fruits constricted between 



the seeds, and young branches leaves and flowers glabrous or clothed 

 with simple hairs. Carpels usually numerous 21 



