Isolona is a genus of flowering plants in the family Annonaceae. There are 20 species native to tropical Africa. They occur in humid habitat types.Couvreur, T. L., Gereau, R. E., Wieringa, J. J., & Richardson, J. E. (2006). Description of four new species of Monodora and Isolona (Annonaceae) from Tanzania and an overview of Tanzanian Annonaceae diversity. Adansonia (Paris), 28(2), 243-266.
Species 20 species are accepted. Isolona campanulata Engl. & Diels Isolona capuronii Cavaco & Keraudren Isolona cauliflora Verdc. Isolona congolana (De Wild. & T. Durand) Engl. & Diels Isolona cooperi Hutch. & Dalziel ex G.P.Cooper & Record Isolona deightonii Keay Isolona dewevrei (De Wild. & T.Durand) Engl. & Diels Isolona ghesquierei Cavaco & Keraudren Isolona heinsenii Engl. & Diels Isolona hexaloba (Pierre) Engl. & Diels Isolona humbertiana Ghesq. ex Cavaco & Keraudr. Isolona lebrunii Boutique Isolona letestui Pellegr. Isolona linearis Isolona madagascariensis (A.DC.) Engl. Isolona perrieri Diels Isolona pilosa Diels Isolona pleurocarpa Diels Isolona thonneri (De Wild. & T.Durand) Engl. & Diels Isolona zenkeri Engl.
References