Octopoma quadrisepalum Octopoma quadrisepalum (L.Bolus) H.E.K.Hartmann in Bradleya 16: 73. 1998 sec. Hartmann 20171≡Ruschia quadrisepala L.Bolus, Notes Mesembryanthemum 2: 175. 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