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| Kingdom Plantae |
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Cephalocereus apicicephalium E.Y. Dawson -- accepted |
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Cephalocereus quadricentralis E.Y. Dawson -- not accepted |
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Echinocereus hancockii E.Y. Dawson -- not accepted |
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Echinocereus maritimus ssp. hancockii (E.Y. Dawson) W. Blum & Rutow -- not accepted |
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Echinocereus maritimus var. hancockii (E.Y. Dawson) N.P. Taylor -- not accepted |
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Jasminocereus howellii E.Y. Dawson -- not accepted |
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Mammillaria duoformis R.T. Craig & E.Y. Dawson -- accepted |
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Mammillaria karwinskiana ssp. nejapensis (R.T. Craig & E.Y. Dawson) D.R. Hunt -- accepted |
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Mammillaria nejapensis R.T. Craig & E.Y. Dawson -- not accepted |
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Neobuxbaumia macrocephala (F.A.C. Weber ex K. Schum.) E.Y. Dawson -- accepted |
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Neobuxbaumia multiareolata (E.Y. Dawson) Bravo, Scheinvar & Sánchez-Mej. -- not accepted |
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Pilosocereus machrisii (E.Y. Dawson) Backeb. -- accepted |
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Pilosocereus quadricentralis (E.Y. Dawson) Backeb. -- accepted |
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Pseudopilocereus machrisii (E.Y. Dawson) Buining & Brederoo -- not accepted |
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Pseudopilocereus machrisii (E.Y. Dawson) Buxb. -- not accepted |
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Reticulobotrys E.Y. Dawson -- accepted |
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