• Acetabularia (Berkeley) Massee, 1893 accepted as Cyphellopus Fayod, 1889 [Family: Bolbitiaceae]
• Acetabularia J.V.F. Lamouroux, 1812 [Family: Polyphysaceae]
• Acetabularia acetabulum (Linnaeus) P.C. Silva, 1952
• Acetabularia antillana (Solms-Laubach) Egerod, 1952
• Acetabularia caliculus J.V. Lamouroux, 1824
• Acetabularia caraibica Kützing, 1856 accepted as Acetabularia crenulata J.V. Lamouroux, 1816
• Acetabularia caribaeum Lamarck, 1816 accepted as Acetabularia crenulata J.V. Lamouroux, 1816
• Acetabularia clavata Yamada, 1934 accepted as
• Acetabularia crenulata J.V. Lamouroux, 1816
• Acetabularia dentata Solms-Laubach, 1895
• Acetabularia denudata Zanardini, 1878 accepted as Acetabularia major G. Martens, 1866
• Acetabularia exigua Solms-Laubach, 1895 accepted as Parvocaulis polyphysoides (P.L. Crouan & H.M. Crouan) S. Berger, U. Fettweiss, S. Gleissberg, L.B. Liddle, U. Richter, H. Sawitzky, H. & G.C. Zuccarello, 2003
• Acetabularia farlowii Solms-Laubach, 1895
• Acetabularia gigas Solms-Laubach, 1895 accepted as Acetabularia major G. Martens, 1866
• Acetabularia haemmerlingii H.G. Schweiger & Berger, 1975
• Acetabularia integra J.V. Lamouroux accepted as Acetabularia acetabulum (Linnaeus) P.C. Silva, 1952
• Acetabularia kilneri J.G. Agardh, 1887
• Acetabularia major G. Martens, 1866
• Acetabularia mediterranea J.V. Lamouroux, 1816 accepted as Acetabularia acetabulum (Linnaeus) P.C. Silva, 1952
• Acetabularia minutissima Okamura, 1912 accepted as
• Acetabularia moebii Solms-Laubach, 1895 accepted as
• Acetabularia myriospora A.B. Joly & Cordeiro-Marina, 1965 accepted as Polyphysa myriospora (A.B. Joly & Cordiero-Marinha) S. Berger & M.J. Kaever, 1992
• Acetabularia parvula Solms-Laubach, 1895 accepted as
• Acetabularia peniculus (R. Brown ex Turner) Solms-Laubach, 1895
• Acetabularia philippinensis Gilbert, 1943 accepted as Acetabularia ryukyuensis Okamura & Yamada, 1932
• Acetabularia polyphysoides P.L. Crouan & H.M. Crouan, 1865 accepted as Parvocaulis polyphysoides (P.L. Crouan & H.M. Crouan) S. Berger, U. Fettweiss, S. Gleissberg, L.B. Liddle, U. Richter, H. Sawitzky, H. & G.C. Zuccarello, 2003
• Acetabularia pusilla (M.A. Howe) F.S. Collins, 1909 accepted as
• Acetabularia roxasii G.C. Trono, A.C. Santiago & E. Ganzon-Fortes, 1978 accepted as Acetabularia ryukyuensis Okamura & Yamada, 1932
• Acetabularia ryukyuensis Okamura & Yamada, 1932
• Acetabularia schenckii K. Möbius, 1889
• Acetabularia suhrii Solms-Laubach, 1895 accepted as accepted as Acetabularia caliculus J.V. Lamouroux, 1824
• Acetabularia toxasii Troño, Santiago & Ganzon-Fortes, 1978
• Acetabularia tsengiana Egerod, 1952 accepted as Parvocaulis exiguus (Solms-Laubach) S. Berger, U. Fettweiss, S. Gleissberg, L.B. Liddle, U. Richter, H. Sawitzky, H. & G.C. Zuccarello, 2003
• Acetabularia velasquezii Troño, Santiago & Ganzon-Fortes, 1978 accepted as
• Acetabularia wettsteinii Schussnig, 1930 accepted as
• Acetabulariaceae Nägeli, 1847 accepted as Polyphysaceae Kützing, 1843