Dioecious spiny, scrambling shrubs or small trees. Leaves spiral; stipules lateral. Inflorescences axillary, spherical-capitate with yellow glands on tepals and bracts. Tepals 4. Stamens 4. Stigmas 1-2. Fruiting perianth enlarged, fleshy, yellow to orange. Derivation of name: After William Maclure (1763-1840), an American geologist Worldwide: 12 species from Indomalesia to Australia, Africa and America Zimbabwe: 1 taxon. |