Psilocaulon tenue (Haw.) Schwantes in Gartenflora 77: 69. 1928 Psilocaulon tenue (Haw.) Schwantes in Gartenflora 77: 69. 1928is new combination for Mesembryanthemum tenue Haw., Saxifrag. Enum. 2: 175. 1821Taxon for this namePsilocaulon tenue (Haw.) Schwantes