Rabiea difformis Rabiea difformis (L.Bolus) L.Bolus, Notes Mesembryanthemum 3: 134. 1938 sec. Hartmann 20171≡Nananthus difformis L.Bolus, Notes Mesembryanthemum 2: 392. 1933 syn. sec. Hartmann 201711. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContent