RANUNCULUS volkensii Engl. [family RANUNCULACEAE], in P. O. A. C: 181 (1895); Ulbr. in N. B. G. B. 10: 901 (1930); Staner in B. J. B. B. 15: 310 (1939); Robyns, F.P.N.A. 1: 171 (1948); F.C.B. 2: 171 (1951). Type: Tanganyika, Kilimanjaro, Marangu, Volkens 971 (B, holo. †, K, iso.!)
RANUNCULUS ulbrichii Engl. [family RANUNCULACEAE], in Z.A.E. 208 (1911); Staner in B. J. B. B. 15: 310, tab. XI. fig. 2 (1939); Robyns, F. P. N. A. 1: 172 (1948); F. C. B. 2: 172 (1951). Type: Ruanda-Urundi, Rugege forest, Mildbraed 982a (B, holo. †)
RANUNCULUS elgonensis Ulbr. [family RANUNCULACEAE], in N. B. G. B. 10: 902 (1930). Type: Uganda, Elgon, Dummer 3312 (B, holo. †, K, iso.!)
RANUNCULUS helogeton Ulbr. [family RANUNCULACEAE], l.c. 901 (1930). Type: Kenya, Aberdare Mts., near Sattimma, Fries 2352 (UPS, holo., K, iso.!)