- Acetabularia tsengiana Egerod, 1952
- Parvocaulis exiguus (Solms-Laubach) S.Berger, U.Fettweiss, S.Gleissberg, L.B.Liddle, U.Richter, H.Sawitzky & G.C.Zuccarello, 2003
- Polyphysa exigua (Solms-Laubach) M.J.Wynne, 1995
Didymocarpus brevicalyx