| Alstonia congensis H.G. Engler |
Engler H.G.A. |
1887 |
Beiträge zur Flora des Congogebites. |
Bot. Jahrb. Syst. |
| Alstonia congensis H.G. Engler |
Durand T.A. & Schinz H. |
1896 |
Etudes sur la Flore de l'Etat Indépendant du Congo. Première partie. |
|
| Alstonia congensis H.G. Engler |
Friedrichs A. & von Mecklenburg H. |
1914 |
Wissensschaftliche Ergebnisse der Deutschen Zentral-Afrika-Expedition 1907-1908. Band II. Botanik. |
|
| Alstonia congensis H.G. Engler |
Chevalier A.J.B. |
1917 |
Les Végétaux Utiles de l'Afrique tropicale française. La Forêt et les Bois du Gabon. |
|
| Alstonia congensis H.G. Engler |
Chevalier A.J.B. |
1920 |
Exploration botanique de l'Afrique occidentale française. Tome 1. Énumération des plantes récoltées. |
|
| Alstonia congensis H.G. Engler |
Hutchinson J. & Dalziel J.M. |
1931 |
Flora of West tropical Africa The British West African colonies, Liberia, British Cameroons, the French and Portuguese territories south of the tropic of Cancer to lake Chad, and Fernando Po. Vol. II. Part 1. |
|
| Alstonia congensis H.G. Engler |
Aubréville A. |
1936 |
La flore forestière de la Côte d'Ivoire. |
|
| Alstonia congensis H.G. Engler |
Eggeling W.J. & Harris C.M. |
1939 |
Forest Treesand Timbers of the British Empire. Fifteen Uganda Timbers. |
|
| Alstonia congensis H.G. Engler |
Monachino J.V. |
1941 |
Monachino Pacific Sci. 3 1949 |
Pacific Sci. |
| Alstonia congensis H.G. Engler |
Aubréville A. |
1959 |
La flore forestière de la Côte d'Ivoire. |
|
| Alstonia congensis H.G. Engler |
Hutchinson J. & Dalziel J.M. |
1963 |
Flora of West tropical Africa The British West African territories, Liberia, the French and Portuguese territories south of latitude 18° N to lake Chad, and Fernando Po. Second edition. Vol. II. |
|
| Alstonia congensis H.G. Engler |
Keay R.W.J., Onochie C.F.A. & Stanfield D.P. |
1964 |
Nigerian Trees. |
|
| Alstonia congensis H.G. Engler |
Kunkel G.W.H. |
1965 |
The Trees of Liberia. Field notes on the more important trees of the Liberian Forests, and a field identification key. Report n. 3 of the German Forestry Mission to Liberia. |
|
| Alstonia congensis H.G. Engler |
De Jong B.H.J. |
1979 |
A Revision of the African species of Alstonia R. Br. (Apocynaceae). |
Meded. Landbouwhogeschool |
| Alstonia congensis H.G. Engler |
Vivien J. & Faure J.J. |
1985 |
Arbres des forêts denses d'Afrique Centrale. |
|
| Alstonia congensis H.G. Engler |
Sidiyasa K. |
1998 |
Taxonomy, phylogeny, and wood anatomy of Alstonia (Apocynaceae). |
Blumea |
| Alstonia congensis H.G. Engler var. glabrata J. Hutchinson & J.M. Dalziel |
Hutchinson J. & Dalziel J.M. |
1931 |
Flora of West tropical Africa The British West African colonies, Liberia, British Cameroons, the French and Portuguese territories south of the tropic of Cancer to lake Chad, and Fernando Po. Vol. II. Part 1. |
|
| Alstonia gilletii E.A. De Wildeman |
De Wildeman E.A.J. |
1907 |
de Wildem. Miss. E. Laurent 1 1907 |
|
| Alstonia gilletii E.A. De Wildeman |
De Wildeman E.A.J. |
1910 |
Compagnie du Kasai. Mission permanente d'études scientifiques. Résultats de ses recherches botaniques et agronomiques. |
|
| Alstonia gilletii E.A. De Wildeman |
De Wildeman E.A.J. |
1919 |
de Wildem. Bull. Jard. Bot. Etat. Brux. 5 1919 |
Bull. Jard. Bot. État |