• Cyanostylon L. Geitler, 1928
• Cyanostylon banyolense Margalef
• Cyanostylon banyolensis Margalef, 1946 accepted as Hormothece banyolensis (Margalef) Komárek & Anagnostidis, 1995
• Cyanostylon cylindrocellulare Geitler, 1933 accepted as Hormothece cylindrocellulare (Geitler) Komárek & Anagnostidis, 1995
• Cyanostylon gelatinosum M.T.P. Azevedo & C.L. Sant'Anna
• Cyanostylon gelatinosus M.T.P. Azevedo & C.L. Sant'Anna, 1994
• Cyanostylon giganteum Liang, 1987
• Cyanostylon microcystoides Geitler, 1928
• Cyanostylon ovoideum Skuja, 1964
• Cyanostylon plancticum F. Hindák, 1988
• Cyanostylon purpureum Chu & Chen, 1985
• Cyanostylon rupestris (Jao) Bourrelly, 1970 accepted as Hormothece rupestris C.-C. Jao, 1944
• Cyanostylon sinense Chu, 1952
• Cyanostylon sinicum (Ley) Bourrelly, 1970
• Cyanostylon starmuehlneri Bourrelly, 1984 accepted as Hormothece starmuehlneri (Bourrelly) Komárek & Anagnostidis, 1995