88 xc. convolvulace^g (baker ad rexdle). [Aniseia. 



15. ANISEIA, Choisy in Mem. Soc. Phys. Geneve, vi. 481. . 



Sepals herbaceous, obtuse to acute, the 3 outer much larger, ovate 

 and more or less decurrent on the peduncle. Corolla broadly and 

 shortly funnel-shaped, entire, very hairy in bud, sepaline areas 

 glabrous in the open flower. Pollen globose, not spinose. Ovary 

 glabrous, 2-celled ; stigma bicapitate ; disc obsolete. Capsule 4-valved, 

 2-celled, 4-seeded. Seeds large, black, glabrous except on the edges. 

 — Climbing herbs. Leaves elliptic to lanceolate, entire. Peduncles 

 axillary, generally 1 -flowered ; bracts small, narrow. 



Species few, natives of Tropical America, one also occurring in the tropics of the 

 Old World. 



1. A. uniflora, Choisy in Mem. Soc. Phys. Geneve, vi. (1834), 

 483. Perennial. Stems slender, twining, thinly pubescent. Leaves 

 shortly petioled, oblong to linear-oblong, oblong-lanceolate or lanceo- 

 late, firm, thinly pubescent, 1-2 in. long, narrowed to the base, 

 obtuse with a small mucro. Peduncles 1-flowered, 1-ltj in. long ; 

 bracts minute, lanceolate. Calyx G-8 lin. long in flower, becoming 

 9 lin. long in fruit ; outer sepals ovate, obtuse, becoming scariose ; 

 inner lanceolate. Corolla white, densely hairy on the ribs, regularly 

 funnel-shaped, 1 in. long. Capsule ovoid, glabrous, as long as the 

 calyx, 4-valved. Seeds glabrous, black, punctulate, with short flat hairs 

 on the edges, 2J lin. long, as large as a pea. — Choisy in DC. Prodr, ix. 

 431 ; Benth. in Hook. Niger. Fl. 468. A. martinicensis, Choisy in Mem. 

 Soc. Phys. Geneve, viii. (1838), 144, and in DC. Prodr. ix. 430; 

 Hallier f. in Engl. Jahrb. xviii. 96 inch var. ambigua. Convolvulus 

 martinicensis, Jacq. Hist. Stirp. Arner. 26, t. xvii. Ipomcea lanceolata, 

 G.Don, Gen. Syst. iv. 282; Choisy in DC. Prodr. ix. 390. /. uniflora, 

 Roem. & Schult. Syst. iv. 247. 



Upper Guinea. Senegal, Seudelot, 707 ! Roger, 38 ! Sierra Leone, Don ! 

 Garrett, 25 ! Scott-Elliot, 4051 ! 5271 ! 5696 ! Lagos : Abeokuta, Barter, 3340 ! 

 Southern Nigeria : Ncloni, Barter ! Cameroon*, Buchholz. 



lower Guinea. Angola : Cuanza River, Johnston ! 



Mozamb. Dist. Zanzibar, Stuhlmann, 113. 



Cosmopolitan in the tropical zone. 



16. CONVOLVULUS, Linn. ; Benth. et Hook. f. Gen. PI. ii. 874. 



Sepals generally subequal, obtuse or acute. Corolla funnel-shaped, 

 colour various, midpetaline areas not well defined, passing gradually 

 into the sepaline areas. Stamens inserted low down in the corolla- 

 tube ; filaments generally unequal, filiform. Ovary 2-celled, 4-ovuled ; 

 style filiform ; stigmas two, filiform. Capsule 2-celled, usually 

 4-valved, 4-seeded. Seeds black or brown, glabrous, or pubescent, 

 sometimes tuberculate; cotyledons broad, plicate. — Herbs or shrubs 

 with climbing, prostrate or erect stems. Leaves simple. Flowers 

 solitary, in few-flowered cymes or in dense involucrate heads. 



