Intro -- Contents -- 1: Introduction -- 1.1 Historical Sketch -- 1.2 Classification of Euphorbia -- 1.2.1 Relationships among and within the Subgenera -- 1.2.2 Species Concepts in Euphorbia -- 1.3 Morphology of Euphorbia (mainly in Southern Africa) -- 1.3.1 Rootstock -- 1.3.2 Shoots -- 1.3.3 Spines -- 1.3.4 Leaves -- 1.3.5 Stipules -- 1.3.6 The Organization of Flowers -- 1.3.7 Fruit, Seed and Seedlings -- 1.4 Chromosome Numbers -- 1.5 Pollination Biology -- 1.5.1 Flowering Times -- 1.5.2 The Mechanics of Pollination -- 1.5.3 Pollinators -- 1.6 Biogeography and Ecology -- 1.6.1 Aspects of Overall Distribution -- 1.6.2 Aspects of the Distribution of Euphorbia in Southern Africa -- 1.6.3 Habitat and Ecology -- 1.7 Cultivation -- 1.7.1 Propagation -- 1.7.2 Diseases, Parasites and Predation -- 1.8 Uses -- 1.9 Systematic account -- 1.10 Key to the subgenera of Euphorbia in Southern Africa -- 2: Euphorbia subg. Athymalus -- 2.1 Sect. Anthacanthae -- 2.1.1 Subsect. Dactylanthes -- 2.1.2 Subsect. Florispinae -- 2.1.2.1 Ser. Hystrix -- 2.1.2.2 Ser. Meleuphorbia -- 2.1.2.3 Ser. Rhizanthium -- 2.1.2.4 Ser. Treisia -- 2.1.3 Subsect. Medusea -- 2.1.4 Subsect. Platycephalae -- 2.1.5 Subsect. Pseudeuphorbium -- 2.2 Sect. Crotonoides -- 2.3 Sect. Lyciopsis. |