1. Universidade Federal do Paraná, Departamento de Botânica, Caixa Postal 19031, 81531-980, Curitiba-PR, Brazil;, Email: plabiak@ufpr.br
2. The New York Botanical Garden, Institute of Systematic Botany, 200th Street and Southern Blvd., Bronx, New York 10458-5126, U.S.A.
3. Marymount Manhattan College, 221 East 71st Street, New York, New York 10021, U.S.A.