Pleiospilos compactus subsp. fergusoniae (L.Bolus) H.E.K.Hartmann & Liede in Bot. Jahrb. Syst. 106: 478. 1986
Pleiospilos compactus subsp. fergusoniae in Bot. Jahrb. Syst. 106: 478. 1986
is new combination for Pleiospilos fergusoniae, Notes Mesembryanthemum 2: 99. 1929
Pleiospilos compactus subsp. fergusoniae in Bot. Jahrb. Syst. 106: 478. 1986