Psammophora nissenii Psammophora nissenii (Dinter) Dinter & Schwantes in Z. Sukkulentenk. 2. 1926 sec. Hartmann 20171≡Mesembryanthemum nissenii Dinter in Repert. Spec. Nov. Regni Veg. 19: 123. 1923 syn. sec. Hartmann 201711. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContent