Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1999)

Flora Brasiliensis, enumeratio plantarum in Brasilia hactenus detectarum :quas suis aliorumque botanicorum studiis descriptas et methodo naturali digestas partim icone illustratas - Martius, Karl Friedrich Philipp von, 1794 -1868 (R. Oldenbourg, 1874)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1931)