Oncinotis

Jongkind, Carel C. H. & Lachenaud, Olivier, 2022, Novelties in African Apocynaceae, Candollea 77 (1), pp. 17-51 : 36

Oncinotis

The genus Oncinotis is closely related to Baissea (see above) and Motandra , which it resembles very much in fruit and vegetative characters. It differs from both by the presence of five coronal appendages in the corolla throat between the lobes, and from Baissea also by its anthers with curved and obtuse basal tails. Oncinotis was revised by DE KRUIF (1985) and has eight species (including the new species described here), seven of which are found in continental Africa and one in Madagascar. Differences between the six Central African species of Oncinotis are presented in Table 4. The remaining continental species is the West African O. nitida Benth. , easily recognised by its numerous secondary leaf veins (13–25 pairs).