Ulva costata (M.Howe) Hollenberg
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)
Wynne, M.J. (2002). The reinstatement of the name Ulva nematoidea Bory de Saint-Vincent (Chlorophyta) and the placement of U. costata (Howe) Hollenberg in its taxonomic synonymy. Cryptogamie, Algologie 23: 5-12.