Delosperma calycinum Delosperma calycinum L.Bolus, Notes Mesembryanthemum 1: 142. 1928 sec. Hartmann 201711. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContent