DISSOTIS senegambiensis var. senegambiensis [family MELASTOMATACEAE], ; A. & R. Fernandes in Bol. Soc. Brot., sér.2, 46: 69 (1972)
Osbeckia senegambiensis Guill. & Perr. [family MELASTOMATACEAE], in Fl. Seneg. Tent. 1: 310 (1833); Hook. f. in F.T.A. 2: 443 (1871); Gilg in E.M. 2: 8 (1898); V.E. 3 (2): 746 (1921); F.P.S. 1:194 (1950); F.W.T.A., ed. 2, 1: 249 (1954)
Dissotis irvingiana Hook. [family MELASTOMATACEAE], in Bot. Mag. 85, t. 5149 (1859); Hook. f. in F.T.A 2: 453 (1871); Gilg in E.M. 2: 20 (1898); V.E. 3 (2): 752 (1921); F.W.T.A., ed. 2, 1: 259 (1954); A. & R. Fernandes in Garcia de Orta 2: 179 (1954). Types: Nigeria, Abeokuta, Irving 119 & Nupe, Barter 1025 (both K, syn. !)
Osbeckia abyssinica Gilg [family MELASTOMATACEAE], in E.M. 2: 8 (1898); V.E. 3 (2): 746 (1921); F.P.S. 1: 194 (1950). Type: Ethiopia, Begemder, Carruta, 1863, Schimper 1437 (B, holo. †, BM, K, iso. !)
Osbeckia saxicola Gilg [family MELASTOMATACEAE], in E.M. 2: 7, t. 1/D (1898); V.E. 3 (2): 746, fig. 317/c (1921); F.P.S. 1: 194 (1950). Type: Sudan, Jur [Ghattas Zeriba], 1869, Schweinfurth 1494 (K, lecto. !)
Osbeckia densiflora [family MELASTOMATACEAE], [sensu Gilg in E.M. 2: 8 (1898), quoad specim. Buchanan 114, non Gilg sensu stricto]
Osbeckia crepiniana Cogn. [family MELASTOMATACEAE], in Ann. Mus. Congo, Bot., sér.1, 1: 23, t. 12/10–11 (1898); V.E. 3 (2): 746 (1921). Type: Zaire, Zambi, Dewévre (BR, holo.)
Osbeckia cogniauxiana De Wild. [family MELASTOMATACEAE], Pl. Bequaert. 1: 374 (1922). Type: Zaire, Angi, Bequaert 5793 (BR, holo.)
Dissotis kassnerana Kraenzlin [family MELASTOMATACEAE], in Viert. Nat. Ges. Zürich 76: 151 (1931). Type: Kenya, Kitui District, Galunka, Kassner 861 (BM, K, iso. !)
Dissotis irvingiana (Gilg) A. & R. Fernandes forma abyssinica [family MELASTOMATACEAE], in Garcia de Orta 2: 179 (1954) & in Mem. Soc. Brot. 11: 36, 87 (1956) & in Bol. Soc. Brot., sér.2, 34: 188 (1960).
Dissotis irvingiana forma irvingiana [family MELASTOMATACEAE], ; A. & R. Fernandes in An. Junta Invest. Ultramar 10, 3: 36 (1955) & in Mem. Soc. Brot. 11: 36 (1956) & in Bol. Soc. Brot., sér.2, 34: 188 (1960)