OPILIA celtidifolia var. celtidifolia [family OPILIACEAE]
Groutia celtidifolia Guill. & Perr. [family ], in Fl. Senegamb. Tent. 1: 101, t. 22 (1831)
Opilia amentacea [family OPILIACEAE], [sensu Oliv., F.T.A. 1: 352 (1868); Bak. f. in J.L.S. 40: 43 (1911); Thonner, Blutenpflanz. Afr., t. 36 (1908) & Fl. Pl. Afr., t. 36 (1915), non Roxb.]
Opilia angiensis De Wild. [family OPILIACEAE], in Rev. Zool. Afr. 10, Suppl. Bot.: 13 (1922) & Pl. Bequaert. 2: 23 (1923). Type: Congo Republic, Kivu Province, Angi, Bequaert 5829 (BR, holo.!)
Opilia ruwenzoriensis De Wild. [family OPILIACEAE], in Rev. Zool. Afr. 10, Suppl. Bot.: 12 (1922); Pl. Bequaert. 2: 24 (1923). Type: Congo Republic, Ruwenzori, Bequaert 3840 (BR, holo.!)
Opilia parviflora A. Peter [family OPILIACEAE], F.D.O.-A., 2: 147 (1932), nomen nudum. Based on: Tanganyika, Kilimanjaro region, Volkens 1964 (B !)