Poecilothamnion interruptum (Smith) Nägeli, 1862 species synonym

Callithamnion apiculatum Menegh., 1844 species synonym

Seirospora sphaerospora Feldmann, 1935 species accepted

Seirospora apiculata (Menegh.) G.Feldmann-Mazoyer, 1941 species accepted

Seirospora viridis Aponte & D.L.Ballant., 1995 species accepted

Seirospora occidentalis Børgesen, 1909 species accepted

Seirospora interrupta (J.E.Smith) F.Schmitz species accepted

Seirospora hormocarpa (Holmes) Batters species synonym

Seirospora seirosperma (Harvey) P.S.Dixon species synonym

Seirospora griffithsiana Harvey species synonym

Seirospora giraudyi (Kütz.) De Toni, 1903 species accepted

Seirospora orientalis Kraft, 1988 species accepted

Callithamnion seirospermum (Harvey) Harvey species synonym

Callithamnion versicolor var. seirospermum Harvey, 1834 variety synonym

Callithamnion interruptum (J.E.Smith) C.Agardh species synonym

Callithamnion byssoides f. seirosporifera Holmes & Batters, 1891 form synonym

Conferva interrupta J.E.Smith species synonym

Callithamnion hormocarpum Holmes, 1873 species synonym

Phlebothamnion giraudyi Kütz., 1849 species synonym

Microthamnion interruptum (Smith) J.Agardh ex Ardissone, 1893 species synonym

Antithamnion interruptum (Smith) J.E.Gray, 1864 species synonym

Microthamnion interruptum (Smith) J.Agardh species homotypic synonym