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CCDB → Angiosperms → Cactaceae → Melocactus → Melocactus longispinus Buining & Brederoo & Theunissen
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Melocactus longispinus Buining & Brederoo & Theunissen | Melocactus ernestii Vaupel | 44 | IPCN online | Das, A. B., S. Mohanty & P. Das. 1998. Interspecific variation in nuclear DNA content and chromosome analysis in Melocactus. Cytologia 63: 239–247. |