Supplementary material 3 from: Wade R, Spalding H, Peyton K, Foster K, Sauvage T, Ross M, Sherwood A (2018) A new record of Avrainvillea cf. erecta (Berkeley) A. Gepp & E. S. Gepp (Bryopsidales, Chlorophyta) from urbanized estuaries in the Hawaiian Islands. Biodiversity Data Journal 6: e21617. https://doi.org/10.3897/BDJ.6.e21617

Reference species characters retrieved from the descriptions provided by Olsen-Stojkovich (1985). Bolded character text represent character congruence with the newly discovered species from Hawai'i.