• Crocynia aeruginosa sensu auct. brit.p.p. accepted as Lepraria incana (Linnaeus) Acharius, 1803
• Crocynia aeruginosa sensu auct. brit.p.p. accepted as Botryolepraria lesdainii (Hue) Canals, Hern.-Mar., Gómez-Bolea & Llimona, 1997
• Crocynia andrewii de Lesd. accepted as Lepraria lobificans Nyl., 1873
• Crocynia caesioalba de Lesd., 1914 accepted as Lepraria caesioalba (de Lesd.) J.R. Laundon, 1992
• Crocynia chlorina (Ach.) Hue accepted as Chrysothrix chlorina (Ach.) J.R. Laundon, 1981
• Crocynia crassissima Hue accepted as Lepraria crassissima (Hue) Lettau, 1958
• Crocynia crassissima sensu auct. brit.p. max.p. accepted as Lepraria nivalis J.R. Laundon, 1992
• Crocynia cretacea Hue accepted as Schismatomma cretaceum (Hue) J.R. Laundon, 1984
• Crocynia finkii de Lesd., 1924 accepted as Lepraria lobificans Nyl., 1873
• Crocynia finkii Hue, 1985 accepted as Lepraria lobificans Nyl., 1873
• Crocynia flava (Schreb.) Hue accepted as Chrysothrix candelaris (L.) J.R. Laundon, 1981
• Crocynia flava sensu auct. brit. accepted as Chrysothrix candelaris (L.) J.R. Laundon, 1981
• Crocynia fragilis de Lesd.
• Crocynia gossypina (Sw.) A. Massal., 1860
• Crocynia grevilleana de Lesd. accepted as Botryolepraria lesdainii (Hue) Canals, Hern.-Mar., Gómez-Bolea & Llimona, 1997
• Crocynia lanuginosa (Ach.) Hue, 1909
• Crocynia lanuginosa sensu auct. brit.p. max.p. accepted as Lepraria membranacea (Dicks.) A.L. Sm.
• Crocynia latebrarum (Ach.) Hue accepted as Lecanactis latebrarum (Ach.) Arnold, 1885
• Crocynia lesdainii Hue accepted as Botryolepraria lesdainii (Hue) Canals, Hern.-Mar., Gómez-Bolea & Llimona, 1997
• Crocynia membranacea (Dicks.) Zahlbr., 1923 accepted as Lepraria membranacea (Dicks.) A.L. Sm.
• Crocynia mollissima de Lesd. accepted as Lepraria lobificans Nyl., 1873
• Crocynia neglecta (Nyl.) Hue accepted as Lepraria neglecta (Nyl.) Erichsen, 1957
• Crocynia pyxinoides Nyl., 1891
• Crocynia rigidula de Lesd., 1924 accepted as Lepraria rigidula (de Lesd.) Tønsberg, 1992
• Crocynia tephra Hue accepted as Lepraria incana (Linnaeus) Acharius, 1803
• Crocynia vouauxii Hue accepted as Lepraria vouauxii (Hue) R.C. Harris, 1987
• Symplocia gossypina (Sw.) A. Massal., 1854 accepted as Crocynia gossypina (Sw.) A. Massal., 1860