FIGURE 10 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959

FIGURE 10. Ulva flexuosa subsp. pilifera (Kützing) M.J. Wynne (Voucher code: WA0000019414). A—Filamentous (arrow) and wide thalli from herbarium sheet, B—branching (arrows) in the basal part of the thallus, C—monolayer of the cell (arrow), D—irregularly arranged cells with poorly stained pyrenoids (1–2 per cell) (arrows), E—thin-walled cells (arrow) in the branching of thalli, F—initial cell (arrow) of uniseriate proliferation, G—thin-walled and slightly rounded apical cell (arrow) of a single branch.