Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Rivularia C.Agardh ex Bornet & Flahault, 1886)
Rivularia biasolettiana Menegh. ex Bornet & Flahault
Doubtful according to GBIF classification (Possible variant of Rivularia biasolettiana Menegh.)