Recent Species
Corbisema triacantha var. flexuosa Stradner
Melosira atlymica var. minor Rubina
Melosira ignota var. simplex Rubina
Melosira praegranulata var. minor Rubina
Knasteria spiralis f. major Macko
Micrhystridium aktugaicum Ogurtsova
Dictyotidium microreticulatum Z.Song, C.He, Z.Qian, Z.Pan, G.Zheng & Y.Zheng