Physacanthus batanganus (G. Braun & K. Schum.) Lindau [family ACANTHACEAE], in Schlechter Westafr. Kautschuk-Exped. 315 (1900); Rendle & Britten in J. Bot. 47: 378 (1909), for full synonymy; Hallé l.c., t. 1, 6-8.
Ruellia batangana G. Braun & K. Schum. [family ACANTHACEAE], Mitt. Deutsch.Schutzgeb2: 173 (1889)
Physacanthus inflatus C. B. Cl. [family ACANTHACEAE], in F.T.A5: 57 (1899); F.W.T.A., ed1, 2: 253; ChevBot495
Physacanthus cylindricus C. B. Cl. [family ACANTHACEAE], in EnglBotJahrb43: 352 (1909).
Haselhoffia cylindrica (C. B. Cl.) Lindau [family ACANTHACEAE], in EnglBotJahrb43: 352 (1909), Hallé l.c345, partly (Mann 1670; 3 specimens of 1669, Gabon)