Mammillaria duwei
Mammillaria duwei in Kakteen And. Sukk. 36: 164. 1985 sec. Hunt 20161 wfo-0001255916
- ≡Mammillaria nana subsp. duwei, Cactus File Handb. 6: 203. 1999 syn. sec. Hernández & Gómez-Hinostrosa 20152 wfo-0001432093
- ≡Mammillaria trichacantha subsp. duwei in J. Mammillaria Soc. 40: 8. 2000 syn. sec. ??? wfo-0001432340