| Blidingia Kylin, 1947 |
| Blidingia dawsonii (Hollenberg & I.A. Abbott) S.C. Lindstr., L.A. Hanic & L. Golden, 2006 |
| Blidingia marginata (J. Agardh) P.J.L. Dang., 1958 |
| Blidingia minima (Nägeli ex Kütz.) Kylin, 1947 |
| Blidingia minima var. ramifera Bliding, 1963 |
| Blidingia minima var. vexata (Setch. & N.L. Gardner) J.N. Norris, 1971 |
| Blidingia ramifera (Bliding) Garbary & Barkhouse, 1987 |
| Kornmannia Bliding, 1969 |
| Kornmannia leptoderma (Kjellm.) Bliding, 1969 |
| Kornmanniaceae Golden & K.M. Cole, 1986 |
| Neostromatella M.J. Wynne, G. Furnari & R. Nielsen, 2014 |
| Neostromatella monostromatica M.J. Wynne, G.Furnari & R. Nielsen, 2014 |
| Pseudendoclonium Wille, 1901 |
| Pseudendoclonium marinum (Reinke) Aleem & Schulz, 1952 |
| Stromatella Kornmann & Sahling, 1985 |
| Stromatella monostromatica (P.J.L. Dang.) Kornmann & Sahling, 1985 |