FIGURE 1. Rhizoclonium pachydermum. A. Entire filament. Note the long, almost unbranched filaments. B. Basal region. Note the basal branches and the holdfast. C. Long, almost unbranched filaments. D in Occurrence of true branches in Rhizoclonium (Cladophorales, Ulvophyceae) and the reinstatement of Rhizoclonium pachydermum Kjellman - Zhao, Zhi-Juan (2014)