Novitates Gabonenses 56. Two Anthonotha species from Gabon transferred to Englerodendron (Fabaceae, Caesalpinioideae)

The disputed position of Anthonotha gabunensis (Pellegr.) J.Léonard, whether it fits in Anthonotha or should be placed in Leonardendron, a genus of its own, is reviewed. Its actinomorphic flowers are aberrant, since the genus Anthonotha has zygomorphic flowers. Therefore it is transferred to Englerodendron that has similar actinomorphic flowers and up until now has been known by its single species E. usambarense Harms from Tanzania. On the same grounds Anthonotha conchyliophora (Pellegr.) J.Léonard is also transferred to this genus. Leonardendron is synonymized under Englerodendron. A key to distinguish Englerodendron from related genera is provided as well as a key to the three species of the genus. Important characters of these species are depicted and the distributions of the two species from Lower Guinea are mapped.