Ruellia, IUCN Red List, Ruellieae, Taxonomy, Monograph, Conservation, Angola, and New species
Escarpments, Angola, Highlands, Namibia, Endemism, Petalidium, and Deserts
India, Lepidagathis cristata, Lectotype, Lepidagathis hamiltoniana, Africa, Taxonomic complex, Lepidagathis collina, and Taxonomy