Aridaria laxa L.Bolus in S. African Gard. 17: 433. 1927 Aridaria laxa L.Bolus in S. African Gard. 17: 433. 1927is basionym for Sphalmanthus laxus (L.Bolus) N.E.Br. in Gard. Chron., ser. 3, 84: 35. 1928is basionym for Nycteranthus laxus (L.Bolus) Schwantes, Handb. Succ. Pl. 3: 1329. 1960Taxon for this nameAridaria laxa L.Bolus