Definitions for "Green algae"
green algae belong to the Division Chlorophycota. These algae contain photosynthetic pigments similar to those in higher plants (chlorophylls a and b, as well as secondary pigments: carotenes, lutein, and zeaxanthin) and have a green color. Green algae include unicellular forms, filamentous forms, and leaf-like thalluses.
algae that have chloroplasts that are usually colored green
algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water