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| Kingdom Plantae |
| |
Coryphantha bisbeeana Orcutt – not accepted
|
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Echinocereus boyce-thompsonii Orcutt – not accepted
|
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Hosackia haydonii Orcutt – not accepted
|
| |
Mammillaria gaumeri Orcutt – not accepted
|
| |
Mammillaria johnstonii Orcutt – accepted
|
| |
Mammillaria oliviae Orcutt – not accepted – Biznaga chollo chico
|
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Mammillaria thornberi Orcutt – accepted – Thornber's pincushion cactus, Biznaga de Thornber, Thornber's nipple cactus
|
| |
Mammillaria thornberi ssp. thornberi Orcutt – accepted
|
| |
Opuntia parishii Orcutt – not accepted – matted cholla |
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|
