Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebr. Borntraeger, 1876)

Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebr. Borntraeger, 1877)

Botanisches Hilfsbuch für Pflanzer, Kolonialbeamte, Tropenkaufleute und Forschungsreisende - Winkler, Hubert, 1875 -1941 (Hinstorffsche Verlagsbuchhandlung, 1912)

Bulletin de la Société botanique de France - Centre national de la recherche scientifique (France) (La Société, 1879)

Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie - Muséum national d'histoire naturelle (France) (Muséum National d'Histoire Naturelle, 1981)

Catalogue of the African plants - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees, 1896)

Catalogue of the African plants - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees, 1900)

Catalogue of the African plants - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees, 1896)

Catalogue of the African plants - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees, 1896)

Catalogue of the African plants - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees, 1896)

Catalogue of the African plants - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees, 1898)

Flora of tropical Africa - Oliver, Daniel, 1830 -1916 (L. Reeve and co, 1877)

Index Kewensis. names of seed-bearing plants at the rank of family and below published between January 1981 and the end of 1985 with some omissions from earlier years Supplement eighteen - Royal Botanic Gardens, Kew. (Clarendon Press, 1987)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCLXVI usque ad finem anni MDCCCCLXX nonnulla etiam antea edita complectens Supplementum quintum decimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano)

The Journal of the Linnean Society. Botany - Linnean Society of London. (Longman, Green, Longman, Roberts & Green, 1877)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1876)

Through Angola, a coming colony - Statham, John Charles Baron, 1872 - (W. Blackwood & sons, 1922)

Traité des arbres & arbrisseaux, forestiers, industriels et d'ornement, cultivés ou exploités en Europe et plus particulièrement en France, donnant la description et l'utilisation de plus de 2400 espèces et 2000 variètès - Mouillefert, P. (Pierre), 1846 -1903 (Librairie des sciences naturelles, 1898)