Found in S. and E. Africa and Eritrea, this genus consists of nearly 50 species including many delightful plants, all with short, usually 4- to 6-angled, and more or less toothed. The fleshy , variously coloured and marked, smell slightly of carrion. Heurnias are distinguished from the Stapelias by having the 5 lobes of the flower supplemented by 5 smaller lobes or points, the latter appearing between the main corolla lobes. Cultivation is as for , but great care should be exercised when , especially in winter.
Heurnia Pillansii. Has 20- to 24-angled stems, covered with tubercles ending in fine hairs. The flower is bell-shaped, with elongated lobes, yellow, with crimson flecks inside. The plant is liable to rot if moisture is excessive.
Heurnia primulina. The 4- to 5-angled stems are pale green, with reddish markings. Flower waxy, creamy-white, with reddish markings, round a purple-black inner corolla. This is a very beautiful plant.