| Détermination du spécimen | Collecteur | Numéro | Station de collecte |
|---|---|---|---|
| Piper guineense Schumach. & Thonn. | Wieringa J.J. | 620 | Minkébé region, Nsye valley. |
| Piper guineense Schumach. & Thonn. | Wieringa J.J. | 1180 | Rabi-Kounga, near Rabi 58. |
| Piper guineense Schumach. & Thonn. | Wieringa J.J. | 3220 | 45 km E of Lastoursville, 17 km on CEB exploitation road Moumba. |
| Piper guineense Schumach. & Thonn. | Wieringa J.J. | 3971 | 53 km on road Mékambo to Madjingo. |
| Piper guineense Schumach. & Thonn. | Wilde (WALK-B) | 600 | Ranch of Agrogabon, SE of Tchibanga, c. 100 km along the road to Voungou and c. 20 km from the border with Congo-Brazzaville. |
| Piper guineense Schumach. & Thonn. | Wilks | 802 | arboretum de Sibang, Libreville. |
| Piper guineense Schumach. & Thonn. | Wilks | AP 3519 | Crystal Mountains, 54800m on transect G. |
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