family Zygnemataceae

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Noun

1.

family Zygnemataceae - pond scums: common freshwater algae forming green slimy massesZygnemataceaeprotoctist family - any of the families of Protoctistaorder Zygnemales, order Zygnematales, Zygnemales, Zygnematales - pond scums; desmidsgenus Zygnema, Zygnema - type genus of the family Zygnemataceaepond scum - free-floating freshwater green algaegenus Spirogyra - a genus of protoctist