BAISSEA leonensis Benth. [family APOCYNACEAE], in Hook., Niger Fl.: 452 (1849); Stapf in F.T.A. 4, 1: 213, 611 (1902); Huber in F.W.T.A. ed. 2, 2: 78 (1963); van Dilst in B.J.B.B. 64: 112, t. 11 (1995). Lectotype: Sierra Leone, sine loc., Vogel 119 (K, lecto.; BR, MO, NY, WAG, photo K, chosen by van Dilst)
BAISSEA alborosea Gilg & Stapf [family APOCYNACEAE], in Z.A.E. 2: 540 (1913). Type: Congo (Kinshasa), Beni Urumu, Pojo, Mildbraed 2826 (B†, holo., K, lecto., chosen by van Dilst)
BAISSEA giorgii De Wild. [family APOCYNACEAE], in B.J.B.B. 5: 108 (1915). Type: Congo (Kinshasa), Mobwasa, De Giorgi 794 (BR, holo.)
BAISSEA likimiensis De Wild. [family APOCYNACEAE], Pl. Bequaert. 5: 419 (1932). Type: Congo (Kinshasa), Likimi, Malchair 501 (BR, holo.)