| Spermacoce latifolia Aubl. |
Dessein |
1787 |
Kinguélé waterfalls. |
| Virectaria angustifolia (Hiern) Bremek. |
Dessein |
1788 |
Kinguélé waterfalls. |
| Biophytum DC. |
Dessein |
1789 |
Kinguélé waterfalls. |
| Geophila afzelii Hiern |
Dessein |
1790 |
Kinguélé waterfalls. |
| Chazaliella E.M.A.Petit & Verdc. |
Dessein |
1791 |
Libreville, Sibang arboretum. |
| Chazaliella macrocarpa Verdc. |
Dessein |
1792 |
Libreville, Sibang arboretum. |
| Psychotria mannii Hiern |
Dessein |
1793 |
Libreville, Sibang arboretum. |
| Bertiera breviflora Hiern |
Dessein |
1794 |
Libreville, Sibang arboretum. |
| Argocoffeopsis Lebrun |
Dessein |
1795 |
Libreville, Sibang arboretum. |
| Geophila obvallata (Schumach.) Didr. |
Dessein |
1796 |
Libreville, Sibang arboretum. |
| Spermacoce exilis (L.O.Williams) C.D.Adams ex W.C.Burger & C.M.Taylor |
Dessein |
1797 |
Libreville, Sibang arboretum. |
| Sabicea venosa Benth. |
Dessein |
1798 |
Tchad mountain, km 50 Lambaréné - Fougamou. |
| Massularia acuminata (G.Don) Bullock ex Hoyle |
Dessein |
1799 |
Tchad mountain, km 50 Lambaréné - Fougamou. |
| Heinsia crinita (Afzel.) G.Taylor |
Dessein |
1800 |
Tchad mountain, km 50 Lambaréné - Fougamou. |
| Oldenlandia lancifolia (Schumach.) DC. |
Dessein |
1801 |
Tchad mountain, km 50 Lambaréné - Fougamou. |
| Rutidea dupuisii De Wild. |
Dessein |
1802 |
road Yombi – Bemboudié, 2 km before Bemboudié. |
| Sabicea urceolata Hepper |
Dessein |
1803 |
road Yombi – Bemboudié, 2 km before Bemboudié. |
| Coffea canephora Pierre ex A.Froehner |
Dessein |
1804 |
road Yombi – Bemboudié, 2 km before Bemboudié. |
| Pavetta L. |
Dessein |
1805 |
road Yombi – Bemboudié, 2 km before Bemboudié. |
| Psychotria rubripilis K.Schum. |
Dessein |
1806 |
road Yombi – Bemboudié, 2 km before Bemboudié. |