diatomdiatom:Marimo (毬藻, literally “ball seaweed”), also known as Cladophora aegagr
diatomdiatom:Marimo (毬藻, literally “ball seaweed”), also known as Cladophora aegagropila, Cladophora ball, Lake ball, or Moss Balls in English, is a species of filamentous green algae (Chlorophyta) found in a number of lakes in the northern hemisphere. A marimo is a rare growth form of the species where the algae grow into large green balls with a velvety appearance. Colonies of such balls are only known to form in Iceland, Scotland, Japan and Estonia. -- source link
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