freshwater spirogyra. filamentous charophyte green algae order zygnematales. spiral chloroplasts

algae also aquaculture arrangement benthic biology blanket charophyte chloroplasts creek diagnostic filamentous freshwater genus green helical lake macro mermaid mermaids microscope named nature order phytoplankton river science silk spiral spirogyra supermacro that tresses water weed zygnematales