The shrubby members of the Mesembryanthema are still poorly known and further field work and study of herbarium material has led to the recognition of eight new species. Seven of these species are placed in the Ruschioideae: Phiambolia longifolia Klak, Phiambolia similis Klak, Ruschiella cedrimontana Klak, Ruschia albida Klak, Ruschia magnifica Klak, Leipoldtia gigantea Klak and Hammeria cedarbergensis Klak. In addition, one species of Mesembryanthemoideae, Mesembryanthemum bulletrapense Klak, is described here. Five of these species are found in the Cedarberg area, whereas L. gigantea and M. bulletrapense occur in Namaqualand. Furthermore, two new names and one new combination in Mesembryanthemum are published, which replace recently published homonyms.