34 III. ANONACE.E (oliver). [Oxymitra. 



nous, obovate-elliptical, shortly acuminate, more or less obtuse at the base, 

 glabrous, about 3 in. long, 1:^ in. broad ; petiole 1 line. Pedicels |-1 in., 

 very slender, like the petioles puberulous. Outer petals obtuse, plane, 5-7 

 lines long in our specimen ; inner petals 2-3 lines, more or less connivent. 

 Anthers linear, 2-3 times as long as broad, with a dilated, rhomboidal, trun- 

 cate connective. Carpels numerous ; ovary and recurved stigma pilose ; 

 Ovules 3 or 2, superposed. Fruit not seen. 

 Upper Guinea. Bagroo river, Mann ! 



5. O. patens, Bentk. I.e. t. h\. A glabrous tree, attaining a height of 

 70 ft. Leaves rather coriaceous, at length oval-oblong or elliptical, some- 

 times narrow and elongate, acuminate, the base acute or cuneate ; shining, 

 with looped lateral nerves above ; 5-7 in. long, 1-|— If in. broad ; petiole 2-6 

 lines. Flowers greenish -yellow, on slender naked pedicels, f-1 in. long. 

 Outer petals obovate-oblong or oval, rather obtuse, 4-6 lines long, spreading ; 

 inner petals broadly ovate or triangular, connivent. Anthers very short, 

 truncate; connective much dilated over the cells. Carpels about 10; ovules 

 2, sometimes with a septum more or less developed between them. Unripe 

 fruit-carpels very shortly stipitate, globose, 1 -celled, or 2 -seeded with a dis- 

 sepiment between the seeds. 



Upper Guinea. Eppah, on the Niger, Barter ! Bagroo river, Mann ! Old Calabar, 

 Thomson ! 



Dr. Welwitsch collected in the island of St. Thomas an Anonacea in fruit, which is pro- 

 bably allied to this species. The leaves are broader and the stipes of the globose carpels 

 \-^ an inch. 



12. UNONA, Linn. f. ; Benth. et Hook.f. Gen. PL i. 24. 



Flowers hermaphrodite: Sepals 3, nearly or quite free in the African species, 

 valvate or very slightly imbricate at the base. Petals 6, in 2 series, plane, 

 spreading or the base more or less connivent around the genitalia, nearly 

 equal or the inner shorter or rarely wanting. Stamens indetinite, oblong- 

 quadrate or -cuneate ; connective thickened and globose or truncate and dilated 

 above the anther-cells. Torus plane or convex. Carpels indefinite (3 in 

 U. ? lepidota), free ; stigma ovate obovate oblong linear or clavate, sulcate on 

 the inner face (capitate in U. ? lepidota) ; ovules 2-oo, 1-seriate or sub-2- 

 seriate. Fruit-caipels usually stipitate, constricted between the seeds or con- 

 tinuous or ovoid. — Trees or shrubs, erect or scandent. Flowers solitary or 

 fasciculate, variable in size. 



A genus confined to tropical Asia and Africa. The African species are endemic. 

 Carpels numerous (lO-oo). 



Flowers rather large ; outer petals erect, connivent at the base, at 



length narrowed above. Peduncles stout, 1-few-flowered . . \. JJ. Ursula. 

 Flowers small (^ in. or less) ; outer petals broadly ovate or ovate- 

 rotundate. Pedicels slender, solitary or fascicled. 

 Flowers in fascicles of 2-5. 



Leaves sharply acuminate. Bracteoles small 2. Z7. lucidula. 



Flowers solitary. 



Bracts large, cordate, amplexicaul . Z. U. obovata. - 



Bracts small, lanceolate or ovate. Leaves pilose-pubescent be- 

 neath 4. TJ.ferruginea. 



Bracts small, lanceolate or lirear-lanceolate. Leaves glabrate . 5. U. parvlfolia. 

 Carpels 3. Acuminate leaves beneath and buds lepidote 6. U..'' lepidota. 



