Issue Section:
Letters to the Editor
References
1.
Anderson
, E. F.
, “The Biogeography, Ecology, and Taxonomy of Lophophora (Cactaceae)
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, No. 4
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.2.
Federal Register
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Salm-Dyck
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, A.
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Coulter
, J. M.
, “Preliminary Revision of the North American Species of Cactus Anhalonium, and Lophophora
,” Contributions of the United States National Herbarium
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Lanjouw
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, International Code of Botanical Nomenclature
, International Association for Plant Taxonomy
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.6.
Todd
, J. S.
, “Thin-Layer Chromatography Analysis of Mexican Populations of Lophophora (Cactaceae)
,” Lloydia
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, No. 3
, 1969
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.
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