In preparation of the Syngonanthus account for the Flora of the Serra do Cipó, Minas Gerais, Brazil, Syngonanthus sect. Dimorphocaulon is relegated to synonymy under Syngonanthus sect. Syngonanthus, three species names are lectotypified, and nine names of species and infraspecific taxa described from the Serra do Cipó are placed in synonymy.
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