| Aztekium hintonii Glass & Fitz Maurice | Mexico | George S. Hinton | 21495 | MO | Tropicos | 3605714 | no |
| Aztekium hintonii Glass & Fitz Maurice | Mexico | George S. Hinton | 21528 | MO | Tropicos | 3605751 | no |
| Aztekium hintonii Glass & Fitz Maurice | Mexico | George S. Hinton | 21529 | MO | Tropicos | 3605753 | yes |
| Aztekium ritteri (Boed.) Boed. | Mexico | George S. Hinton | 25732 | MO | Tropicos | 3610425 | yes |
| Aztekium hintonii Glass & Fitz. | Mexico | Hinton et al | 21528 | K | Herbarium | K000062837 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | Anderson | 1684 | K | Herbarium | K000062838 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | | 0 | K | Herbarium | K000062839 | no |
| Aztekium ritteri (Bud.) Bod. | Unknown or unspecified country | | s.n. | K | Spirit Collection | 8625.000 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | | s.n. | K | Spirit Collection | 38683.000 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | | RM327 | K | Spirit Collection | 77096.000 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | | 0 | K | Herbarium | K000251001 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | | 0 | K | Herbarium | K000251000 | no |
| Aztekium ritteri Boed. | Unknown or unspecified country | | 0 | K | Herbarium | K000250999 | no |