A variety o algae growin on the sea bed in shallae watters aff the New Sooth Wales coast
|Cladistically included but traditionally excluded groups|
Algae (// or //; singular alga //, Laitin for "seaweed") are a very lairge an diverse group o simple, typically autotrophic organisms, rangin frae unicellular tae multicellular furms, such as the giant kelp (lairge broun alga), that mey grow up tae 50 meters in length. Maist are photosynthetic an "simple" acause thay lack mony o the distinct cell organelles an cell types foond in land plants. The lairgest an maist complex marine furms are cried seaweeds.