Arenifera pillansii Arenifera pillansii (L.Bolus) A.G.J.Herre in Sukkulentenkunde 2: 35. 1948 sec. Hartmann 20171≡Psammophora pillansii L.Bolus in Fl. Pl. South Africa 7: t. 280. 1927 syn. sec. Hartmann 201711. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContent