The Lycophytes of the Caxiuanã National Forest, Pará State, Brazil: Lycopodiaceae and Selaginellaceae

by Marcio Roberto Pietrobom, Sebastião Maciel, Jeferson Miranda Costa, Maria Goreti Coelho de Souza, Maria José Trindade, Mara Souza dos Santos Fonseca
Published 2009-04-01