Nycteranthus vigilans (L.Bolus) Schwantes, Handb. Succ. Pl. 3: 1326. 1960 Nycteranthus vigilans (L.Bolus) Schwantes, Handb. Succ. Pl. 3: 1326. 1960is new combination for Mesembryanthemum vigilans L.Bolus in J. Linn. Soc., Bot. 45: 121. 1920Taxon for this nameNycteranthus vigilans (L.Bolus) Schwantes