Isolona campanulata Engl. & Diels species accepted

Isolona capuronii Cavaco & Keraudren species accepted

Isolona cauliflora Verdc. species accepted

Isolona congolana (De Wild. & T.Durand) Engl. & Diels species accepted

Isolona cooperi Hutch. & Dalziel ex G.P.Cooper & Record species accepted

Isolona deightonii Keay species accepted

Isolona dewevrei (De Wild. & T.Durand) Engl. & Diels species accepted

Isolona ghesquierei Cavaco & Keraudren species accepted

Isolona heinsenii Engl. species accepted

Isolona hexaloba (Pierre) Engl. species accepted

Isolona letestui Pellegr. species accepted

Isolona linearis Couvreur species accepted

Isolona perrieri Diels species accepted

Isolona pilosa Diels species accepted

Isolona pleurocarpa Diels species accepted

Isolona thonneri (De Wild. & T.Durand) Engl. & Diels species accepted

Isolona lebrunii Boutique species accepted

Isolona madagascariensis (A.DC.) Engl. species accepted

Isolona zenkeri Engl. & Diels species accepted

Isolona humbertiana Ghesq. ex Cavaco & Keraudren species accepted