Cycnium tubulosum (N.E.Br.) O.J.Hansen subsp. montanum [family SCROPHULARIACEAE], in Dansk Bot. Arkiv 32(3): 35, figs 13d–g, 14 (l978); Fischer in Fl. Ethiop. & Eritr. 5: 301 (2006). Type: Zimbabwe [Rhodesia] , Elliot s.n. (K!, lecto.). Fig. 42: 5, p. 161.
Rhamphicarpa heuglinii Schweinf. [family SCROPHULARIACEAE], Beitr. Fl. Aethiopiens: 100 (1867). Type: Sudan, “Khartum in Sennar”, 1854, Heuglin s.n. (B†, holo.)
?Cycnium serratum Engl. forma elatum [family ], P.O.A. C: 360 (1895). Types: E Africa, Peter s.n. (B†, syn.), Böhm 127 (B†, syn.)
Cycnium serratum Engl. forma longipedicellatum [family SCROPHULARIACEAE], P.O.A. C: 361 (1895). Type: Tanzania, Meru, Volkens 1612 (B†, holo.)
Cycnium serratum Engl. forma paucidentatum [family SCROPHULARIACEAE], P.O.A. C: 360 (1895). Types: East Africa, Stuhlmann 6751 (B†, syn.), Holst 3942 (B†, syn.) & Volkens 2385 (B†, syn.)
Cycnium serratum Engl. forma subintegra [family SCROPHULARIACEAE], P.O.A. C: 360 (1895). Type: Tanzania, Uzaramo District: Usaramo, Hildebrandt 1129 (B†, holo.; L, lecto.)
Cycnium paucidentatum (Engl.) Engl. [family SCROPHULARIACEAE], in Ann. Ist. Bot. Roma 7: 29 (1897)
Cycnium rubrifolium Engl. [family SCROPHULARIACEAE], in E.J. 30: 405 (1901). Type: Tanzania, Mbeya District: Mpagara, Mbowu R., Goetze 1402 (B†, holo.; BR, lecto.)
Rhamphicarpa montana N.E. Br. [family SCROPHULARIACEAE], in K B. 1901: 129 (1901); Skan in F.T.A. 4(2): 427 (1906); Troupin, Syllabus fl. Rwanda: 124 (1971); F.P.U.: 134 (1964); U.K.W.F.: 564 (1974)
Rhamphicarpa multicaulis Skan [family SCROPHULARIACEAE], in F.T.A. 4(2): 427 (1906). Type: Tanzania, Lushoto District: Usambara, Umba Valley, Smith s.n. (K!, holo.)
Rhamphicarpa paucidentata (Engl.) Fiori [family SCROPHULARIACEAE], in Nuovo Giorn. Bot. Ital. 47: 37 (1940)
Rhamphicarpa neghellensis Fiori [family SCROPHULARIACEAE], in Nuovo Giorn. Bot. Ital. 47: 36 (1940). Type: Ethiopia, Neghelli, Saccardo s.n. (FT, holo.)