| Name | Mammillaria multiformis (Britton & Rose) Backeberg |
| Authorship | (Britton & Rose) Backeberg |
| Rank | Species |
| Placed in | Mammillaria Haworth |
| Citation | 1931 Neue Kakteen 19 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Mammillaria multiformis (Britton & Rose) Backeberg |
| Identification made in | [no date] (1) |
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