Lithops hookeri var. lutea (de Boer) D.T.Cole, Lithops Flowering Stones: 225. 1988 Lithops hookeri var. lutea (de Boer) D.T.Cole, Lithops Flowering Stones: 225. 1988is new combination for Lithops turbiniformis var. lutea de Boer in Succulenta (Netherlands) 1964: 52. 1964Taxon for this nameLithops hookeri var. lutea (de Boer) D.T.Cole