Eriosyce islayensis (C.F.Först.) Katt. [ Malacocarpus islayensis (Foerster) Britton & Rose]
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Eriosyce islayensis (C.F.Först.) Katt. [] [Zygophyllaceae]
N.L. Britton, J.N. Rose, Cact., vol. 3 : t. 22 (1922) [M.E. Eaton]