350 Plants and their Ways in South Africa 



PachycarpUS has larger bell-shaped or globose flowers, 

 and a corona of long flattened spreading lobes. Follicles 

 winged. Mostly Kalahari and Eastern regions. 

 BBB. Stamens with a double crown. 



Sarcostemma. — Corona of an outer fleshy ring and 5 

 inner leaves. Erect or climbing 

 leafless shrubs, \vith fleshy jointed 

 stems and wheel-shaped corollas. 



AAA. Pollen masses 10, erect ^ 

 with the gland below. Coro?ia double. 

 Riocreuxia. — Corolla bell- 

 shaped, swollen at the base, the 

 slender tips meeting to form an arch. 



Half shrubby graceful climbers, with 

 heart-shaped petiolate leaves and greenish 

 or dark purple flowers, and tuberous roots. 



Stapelia. — Flowers large, star- 

 shaped, greenish purple, mottled. 

 Their strong and disagreeable odour 

 attracts carrion flies, which aid in 

 fertilization. The tufted stems are 

 leafless, 4-angled, and swollen. In 

 the central portion water is stored. 

 Hoodia has large showy flowers 

 over an inch in diameter ; stem stout, cylindrical bushily 

 branched, leafless ; with many tubercled angles ; tubercles 

 spine or bristle tipped. The plant resembles Cactus or Eu- 

 phorbia (fleshy species) in habit. 



Fig. 332.— 5/(2/^/?a. Stem 

 and flowers. (From Hen- 

 slow's " South African 

 Flowering Plants".) 



Order Labiate. 



Calyx gamosepalous, 5 -toothed, remaining on, and often 

 showy after flowering. Corolla more or less zygomorphic, and 

 2 -lipped. Stamens 2 or 4, of two lengths or nearly equal, 

 borne on the petals. Ovary of 2 carpels, becoming 4-celled 

 each cell containing one basal, erect seed. The style comes 

 from the base instead of the top of the carpels. When 

 ripe the fruit separates into four nuts. The order may be re- 



