Nóbrega, G.A., Aidar, M.P.M., Paciencia, M. and Prado, J. 2016. Identification key for lycophytes and ferns from the Picinguaba and Santa Virgínia Nuclei, Parque Estadual da Serra do Mar, Ubatuba, SP, Brazil. Biota Neotropica. 16, 4 (Jan. 2016).