Coryphantha piercei Fosberg in Bull. S. Calif. Acad. Sci. 30: 58. 1931 Coryphantha piercei Fosberg in Bull. S. Calif. Acad. Sci. 30: 58. 1931Taxon for this nameCoryphantha piercei Fosberg in Bull. S. Calif. Acad. Sci. 30: 58. 1931
