Mesembryanthemum optatum N.E.Br. in J. Linn. Soc., Bot. 45: 71. 1920
Mesembryanthemum optatum in J. Linn. Soc., Bot. 45: 71. 1920
is basionym for Punctillaria optata in Gard. Chron., ser. 3, 80: 228. 1926
is basionym for Pleiospilos optatus in Z. Sukkulentenk. 3: 23. 1927