Siccobaccatus


Siccobaccatus is a genus of Brazilian cacti with two species. Its status as an independent genus has been disputed.

Phylogeny

Based on a phylogenetic study published in 2023, Siccobaccatus was found to be separated from the rest of Micranthocereus, where it had been placed as a subgenus. It was closest to the genus Coleocephalocereus, and the authors suggested that Siccobaccatus should be treated as a subgenus of Coleocephalocereus. The relevant part of their cladogram is shown below:
A 2025 phylogenetic study did not include any Siccobaccatus species, but on the basis of stem anatomy recommended that Siccobaccatus should be kept as a separate genus from Coleocephalocereus.

Species

, Plants of the World Online accepted two species:
PhotoSpeciesDistribution
Siccobaccatus estevesii
P.J.Braun & Esteves		Tocantins & Minas Gerais
Siccobaccatus dolichospermaticus P.J.Braun & EstevesBahia & Minas Gerais