Opuntia megasperma J.T.Howell in Proc. Calif. Acad. Sci., ser. 4, 21: 46. 1933
Opuntia megasperma in Proc. Calif. Acad. Sci., ser. 4, 21: 46. 1933
is basionym for Opuntia galapageia subsp. megasperma in Cactology 5 (Suppl. 8): 11. 2020
Opuntia megasperma in Proc. Calif. Acad. Sci., ser. 4, 21: 46. 1933