You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Acre Remove constraint Place: Acre Place Rio Purus basin, near mouth of Rio Macauhan (tributary of Rio Yaco); on terra firma Remove constraint Place: Rio Purus basin, near mouth of Rio Macauhan (tributary of Rio Yaco); on terra firma Topic Plantae Remove constraint Topic: Plantae