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By: Gómez-Hinostrosa, Carlos, - Hernández, Héctor M.Type: ArticleIn: Revista mexicana de biodiversidadVolume:Series:Issue:Date: 2005-12-01Page Range:Publication Info:Subjects: A. griseus Acanthocereus chiapensis Cactaceae Chiapas Guatemala Mexico Peniocereus chiapensis