Pausinystalia
Pausinystalia is a largely African genus of plant in the family Rubiaceae. As of the present time (May 2014) Pausinystalia contains the following 5 species:

Pausinystalia brachythyrsum (K.Schum.) W.Brandt - Cameroon
Pausinystalia johimbe (K.Schum.) Pierre - (often misspelled "yohimba") - Nigeria, Cabinda, Cameroon, Congo-Brazzaville, Gabon, Equatorial Guinea 
Pausinystalia lane-poolei (Hutch.) Hutch. ex Lane-Poole - Ghana, Cote d'Ivoire, Liberia, Sierra Leone, Gabon, Rwanda, Congo-Kinshasa 
Pausinystalia macroceras (K.Schum.) Pierre - Nigeria, Cabinda, Cameroon, Central African Republic, Congo-Brazzaville, Congo-Kinshasa, Equatorial Guinea, Angola 
Pausinystalia talbotii Wernham in A.B.Rendle & al. - Nigeria, Cameroon