• Physarum Persoon in Roemer, 1794
• Physarum albescens T. Macbr., 1922
• Physarum album (Bull.) Chevall., 1826
• Physarum alpestre Mitchel, S.W. Chapm. & M.L. Farr, 1986
• Physarum altaicum Lavrov, 1965
• Physarum alvoradianum Gottsb., 1968
• Physarum annulipes Shuang L. Chen & Yu Li, 1998
• Physarum apiculosporum Härk., 1978 accepted as Badhamia apiculospora (Härk.) Eliasson & N. Lundq., 1979
• Physarum atrum sensu Berkeley (1870) accepted as Physarum confertum T. Macbr., 1922
• Physarum aurantium (Bull.) Pers., 1801 accepted as Physarum viride (Bull.) Pers., 1796
• Physarum auriscalpium Cooke, 1877
• Physarum bethelii T. Macbr. ex G. Lister, 1911
• Physarum bitectum G. Lister, 1911
• Physarum bitunicatum Stan. Carter & Nann.-Bremek., 1972
• Physarum bivalve Pers., 1795
• Physarum brunneolum (W. Phillips) Massee, 1892
• Physarum bubalinum M.L. Farr, 1969
• Physarum caesiellum Chao H. Chung & Tzean, 2000
• Physarum caesium Shuang L. Chen & Yu Li, 1998 accepted as Physarum caesiellum Chao H. Chung & Tzean, 2000
• Physarum capsuliferum (Bull.) Chevall., 1826 accepted as Badhamia capsulifera (Bull.) Berk., 1852
• Physarum carneum G. Lister & Sturgis, 1910
• Physarum cinereum (Batsch) Pers., 1794
• Physarum cinereum Link, 1794
• Physarum cinereum Schumach. ex Rostaf., 1875
• Physarum citrinum Schumach., 1803
• Physarum clavus Alb. & Schwein., 1805 accepted as Didymium clavus (Alb. & Schwein.) Rabenh., 1844
• Physarum columbinum Pers., 1795 accepted as Lamproderma columbinum (Pers.) Rostaf., 1873
• Physarum columellatum Nann.-Bremek. & Y. Yamam., 1987
• Physarum compressum Alb. & Schwein., 1805
• Physarum confertum T. Macbr., 1922
• Physarum congestum Sommerf., 1826 accepted as Arcyodes incarnata (Alb. & Schwein.) O.F. Cook, 1902
• Physarum conglomeratum (Fr.) Rostaf., 1874
• Physarum connatum (Peck) G. Lister, 1911 accepted as Physarum notabile T. Macbr., 1922
• Physarum contextum (Pers.) Pers., 1801
• Physarum crateriforme Petch, 1909
• Physarum cremiluteum Y.F. Chen & C.H. Liu, 1998
• Physarum daamsii Nann.-Bremek., 1971
• Physarum decipiens M.A. Curtis, 1848
• Physarum degawae (Nann.-Bremek. & Y. Yamam.) Y. Yamam., 1998
• Physarum dictyosporum G.W. Martin, 1962
• Physarum diderma sensu Lister (1895) accepted as Physarum bitectum G. Lister, 1911
• Physarum didermoides (Ach. ex Pers.) Rostaf., 1875
• Physarum dispersum Nann.-Bremek. & Y. Yamam., 1990
• Physarum dubium Nann.-Bremek. & Y. Yamam., 1987
• Physarum echinosporum Lister, 1899
• Physarum effusum Link ex Rostaf., 1875 accepted as Didymium squamulosum (Alb. & Schwein.) Fr., 1818
• Physarum effusum Schwein., 1832 accepted as Diderma effusum (Schwein.) Morgan, 1894
• Physarum equatorisporum Hoof & Nann.-Bremek., 1993
• Physarum farinaceum (Schrad.) Pers., 1801 accepted as Didymium melanospermum (Pers.) T. Macbr., 1899
• Physarum flavicomum Berk., 1845
• Physarum florigerum (Meyl.) Y. Yamam., 1994
• Physarum galbeum Wingate, 1899
• Physarum gilkeyanum H.C. Gilbert, 1932
• Physarum globuliferum (Bull.) Pers., 1801
• Physarum gyrosum Rostaf., 1874 accepted as Fuligo gyrosa (Rostaf.) E. Jahn, 1902
• Physarum hagiwarae Nann.-Bremek. & Y. Yamam., 1987
• Physarum hemisphaericum (Bull.) Chevall., 1826 accepted as Diderma hemisphaericum (Bull.) Hornem., 1829
• Physarum hongkongense Chao H. Chung, 1997
• Physarum hyalinum Pers., 1794 accepted as Badhamia capsulifera Cooke, 1853
• Physarum javanicum Racib., 1898
• Physarum laevisporum Agnihothr., 1963
• Physarum lakhanpalii Nann.-Bremek. & Y. Yamam., 1987
• Physarum lateritium (Berk. & Ravenel) Morgan, 1896
• Physarum lenticulare Nann.-Bremek. & Y. Yamam., 1987
• Physarum leucophaeum Fr., 1818
• Physarum leucopus Link, 1809
• Physarum lilacinum Fr., 1829 accepted as Badhamia lilacina (Fr.) Rostaf., 1873
• Physarum limonium Nann.-Bremek., 1966
• Physarum listeri T. Macbr., 1934
• Physarum lividum Rostaf., 1874
• Physarum luteoalbum Lister & G. Lister, 1904
• Physarum luteonodum Nann.-Bremek. & Finger, 1987
• Physarum macrocarpum Ces., 1855 accepted as Badhamia macrocarpa (Ces.) Rostaf., 1875
• Physarum melanospermum Pers., 1794 accepted as Didymium melanospermum (Pers.) T. Macbr., 1899
• Physarum mennegae Nann.-Bremek., 1961
• Physarum metallicum Berk., 1838 accepted as Calomyxa metallica (Berk.) Nieuwl., 1916
• Physarum michelii (Lib.) Corda, 1842 accepted as Diderma hemisphaericum (Bull.) Hornem., 1829
• Physarum miniatum Nann.-Bremek., 1989
• Physarum mucosum Nann.-Bremek., 1958
• Physarum murinum Lister, 1894
• Physarum muscorum (Alb. & Schwein.) Berl., 1888 accepted as Fuligo muscorum Alb. & Schwein., 1805
• Physarum mutabile (Rostaf.) G. Lister, 1911
• Physarum myricanum Y. Yamam., 2000
• Physarum nigripes Link, 1809 accepted as Didymium nigripes (Link) Fr., 1829
• Physarum nigripodum Nann.-Bremek. & Y. Yamam., 1987
• Physarum nitens (Lister) Ing, 1982
• Physarum notabile T. Macbr., 1922
• Physarum nucleatum Rex, 1891
• Physarum nudum T. Macbr., 1932
• Physarum nutans Pers., 1795
• Physarum oblatum T. Macbr., 1922
• Physarum obpyriforme C.H. Liu & Y.F. Chen, 1998
• Physarum obscurum (Lister) Ing, 1982
• Physarum ochraceum (Hoffm.) J. Schröt., 1886 accepted as Diderma ochraceum Hoffm., 1795
• Physarum ovisporum G. Lister, 1921
• Physarum paniceum Fr., 1829 accepted as Badhamia panicea (Fr.) Rostaf., 1873
• Physarum pedunculatum (Trentep.) Schumach., 1803 accepted as Craterium minutum (Leers) Fr., 1829
• Physarum penetrale Rex, 1891
• Physarum perfectum M. Peck, 1932
• Physarum permegalosporum Nann.-Bremek. & Y. Yamam., 1990