Sub-species: Micranthocereus polyanthus subsp. alvini Year: 1975 Country: Brasil
Institution: Instituto Brasileiro de Geografia e Estatística Collection: Herbário RADAMBRASIL do IBGE Basis of record: Preserved specimen Catalogue number: HRB:HRB00025083 View record
Species: Tetrapterys squarrosa Year: 1975 Country: Brasil
Institution: Instituto Brasileiro de Geografia e Estatística Collection: Herbário RADAMBRASIL do IBGE Basis of record: Preserved specimen Catalogue number: HRB:HRB00010861 View record