Ruschia gracilis Ruschia gracilis L.Bolus, Notes Mesembryanthemum 2: 62. 1929 sec. Hartmann 20171≡Mesembryanthemum exile N.E.Br. in Gard. Chron., ser. 3, 87: 32. 1930 syn. sec. Hartmann 201711. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContent