A genus of marine green algae (family Codiaceae), typically having thick, spongy thalli occurring as long branched fronds or cushion-like masses…

Any of the unicellular green algae constituting (or formerly included in) the genus Palmella (family Tetrasporaceae or Palmellaceae), which divide…

Any of various eukaryotic, photosynthetic algae, chiefly of freshwater and terrestrial habitats, which have similar pigmentation to the higher…

Water coloured green by algae or other organic matter. Also: the algae causing this.

a seaweed belonging to the division Chlorospermæ or Chlorosporæ, characterized by green spores.