Filices Africanae. Revisio critica omnium hucusque cognitorum cormophytorum Africae indigenorum additamentis Braunianis novisque Africanis speciebus ex reliquiis Mettenianis adaucta. Accedunt Filices Deckenianae et Petersianae - Kuhn, Maximilian, 1842 -1894 (W. Engelmann, 1868)

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, 1840)

Flore de Madagascar et des Comores : plantes vasculaires - Humbert, H. 1887 -1967 (Imprimerie officielle, 1951)

Flore de Madagascar et des Comores : plantes vasculaires - Humbert, H. 1887 -1967 (Imprimerie officielle, 1951)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1938)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1938)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1938)

Notulae systematicae - Laboratoire de phanérogamie (Muséum national d'histoire naturelle) (J. Dumoulin, 1939)