Aloe sect. Purpurascentes Salm-Reifferscheid-Dyck (1842: 22)

Homotypic synonym:— Aloe ser. Purpurascentes (Salm-Dyck) Berger (1908: 282) . Type:— Aloe succotrina Weston (1770: 5) .

The species and infraspecific taxa are arranged in numerical sequence following the numbering preceding taxon names in the key. Herbarium vouchers that were included in the macro-morphological, molecular, and combined analyses, as well as other specimens examined are listed under the relevant taxa. Here the use of the specimens in the various analyses are indicated by a superscript letter following the herbarium code: macro-morphological (m), molecular (g), and combined analyses (c).