STROMBOSIOPSIS tetrandra Engl. [family OLACACEAE], in E. & P. Pf., Nachtr. zum II–IV: 148 (1897) & in N.B.G.B. 5, App. 21, 1: 8, fig. (on p. 6) (1909); Louis & J. Léon, in F.C.B. 1: 271(1948); F.W.T.A., ed. 2, 1: 649 (1958). Types: Cameroun Republic, Lolodorf, Staudt & Yaoundé [Jaunde], Zenker 326 & Bipindi, Zenker 1580 & 2657 (all B, syn.!)
STROMBOSIOPSIS congolensis De Wild. & Th. Dur. [family OLACACEAE], in B.S.B.B. 38: 187 (1899); Engl, in E.J. 43: 169 (1909). Type: Congo Republic, Mbandaka [Coquilhatville], Dewèvre 593 (BR, holo. !)
STROMBOSIOPSIS tetrandra (De Wild. & Th. Dur.) De Wild. var. congolensis [family OLACACEAE], in Ann. Mus. Congo Belge, Bot. Sér. 5, 3: 71 (1909)