| Classification | Cactaceae: Mammillaria |
| Harvard University Herbaria Barcode(s) | 01678253 |
| Collector | S. D. McKelvey |
| Collector number | 1623 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | Mt. Lemmon road in Santa Catalina Mts. |
| Date Collected | 1930-03-21 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8758226d-eea7-42ea-81d2-d7b9ca60f348 |
| Harvard University Herbaria Barcode | 01678253 |
| Herbarium | GH |
| Family | Cactaceae |
| Determination | Mammillaria macdougalii Rose |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Bag |
| Preparation Method | Dried |
