Constantia is a genus of flowering plants from the orchid family, Orchidaceae. It contains 6 known species, all endemic to Brazil:
Constantia australis (Cogn.) Porto & Brade - Santa Catarina
Constantia cipoensis Porto & Brade - Minas Gerais
Constantia cristinae F.E.L.Miranda - Minas Gerais
Constantia gutfreundiana Chiron & V.P.Castro - Minas Gerais
Constantia microscopica F.E.L.Miranda - Minas Gerais
Constantia rupestris Barb.Rodr. - Rio de Janeiro
List of Orchidaceae genera
Pridgeon, A.M., Cribb, ...
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*All information is based on published scientific research