Apocynacece^ APOCYNACEiE. 217 



opposite or wliorled, very rarely alternate, entire, usually without stipules, but 

 having frequently glands between the leaves, or in their axils, as also within 

 the calyx at its base. Flowers usually in axillary or terminal cymes or panicles. 

 A large Order, chiefly tropical, with a few species from more temperate regions, both in 

 the northern and southern hemispheres. 



Ovary single, the carpels completely united from the base. 



Ovary 1 -celled, with 2 parietal placentas. Flowers large, yellow. 



Capsule pi-ickly 1. Allamanda. 



Ovary 2-celled. Flowers white, in close terminal cymes. Fruit 



succulent, smooth 2. Mklodinus. 



Ovary of 2 distinct carpels, united only by the simple style. 

 Corolla-lobes ending in a long linear point. Dichotomous shrub, 



with terminal cymes 6. Strophanthus. 



Corolla-lobes shorter than, or about the length of the tube, obtuse 

 or acute. 

 Fruit of 1 or 2 drupes or berries. 



Straggling or half-climbing shrub, with small, very obtuse, 

 opposite leaves and small flowers. Berries or drupes 



stalked 3. Alyxia. 



Tall erect shrub, with long alternate crowded leaves, and 



rather large flowers. Drupe sessile 4. Cerbera. 



Fruits follicular. Leaves opposite. 



Small erect annual or perennial. Flowers 2 together, sessUe 



in the axils. Follicles small, erect 5. Vinca. 



Woody climbers or shrubs. Flowers in terminal trichoto- 

 mous cymes or panicles. 

 Corolla-lobes narrow, very oblique, about the length of the 



tube. 

 • Anthers in the middle of the corolla-tube, sagittate . 7. Rhynchospermum. 

 Anthers small, at the base of the tube, obtuse at the 



base 8. Aqanosma. 



Corolla-lobes short, ovate, scarcely obhque. Flowers 

 small and numerous. 

 Corolla-tube cylindrical or ovoid ; the lobes spreading, 



about half as long 9. Pottsia. 



Corolla shortly campanulate 10. Ecdysanthera. 



1. ALLAMANDA, Linn. 



CoroUa-tube cylindrical at the base, with a large campanulate throat, and 

 broad spreading lobes, with two erect scales at the base of each. Anthers 

 sagittate, within the tube. Disk annular, entire. Ovaiy 1 -celled, with 2 

 parietal placentas. Style filiform, with a cylindrical 2-lobed stigma. Fniit a 

 prickly ovoid capsule. — Erect shrubs or woody climbers. Leaves wliorled, or 

 sometimes opposite. Flowers large, yellow, 



A small genus, confined to tropical America, except where introduced. 



1. A. cathartica, Linn.; DC. Prod, viii, 318; Bot. Mag. t. 338. A 

 tall woody climber. Leaves in whorls of 3 or 4, or rarely opposite, oblong, 

 acuminate, glabrous or slightly haiiy on the micb"ib underneath, with small 

 glands in their axils. Flowers large, yellow, few together in terminal sessile 

 cymes. Sepals lanceolate, about 5 lines long. Corolla with tlie naiTow ])art 

 of the tube about 1 in. long, the broad campanulate tliroat about as long, and 

 the broad oblique lobes also about 1 in, long. 



