Micranthocereus
Micranthocereus is genus of cactus. It originates from Brazil and includes about 10species.
The two genera Austrocephalocereus and Siccobaccatus have been brought into synonymy with this genus.
Species
, Plants of the World Online accepted the following species:| Subgenus | Image | Scientific name | Distribution |
| Austrocephalocereus | Micranthocereus albicephalus | Brazil | |
| Austrocephalocereus | Micranthocereus aureispinus F.Ritter | Brazil | |
| Austrocephalocereus | Micranthocereus purpureus | Bahia - Brazil | |
| Austrocephalocereus | Micranthocereus streckeri | Bahia - Brazil | |
| Micranthocereus | Micranthocereus alvinii | Bahia - Brazil | |
| Micranthocereus | Micranthocereus auriazureus | Brazil | |
| Micranthocereus | Micranthocereus flaviflorus | Bahia - Brazil | |
| Micranthocereus | Micranthocereus hofackerianus | Bahia - Brazil | |
| Micranthocereus | Micranthocereus polyanthus | Bahia - Brazil |