Fucus
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Fucus is a genus of brown algae found in the intertidal zones of rocky seashores almost throughout the world.
Two species of Fucus growing next to each other in the intertidal zone, F. serratus in the front, F. vesiculosus in the back
Conceptacle of F. vesiculosus, with filaments protruding; Scale bar: 20 μm
Brown algae
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Brown algae are a large group of photoautotrophic, multicellular SAR comprising the class Phaeophyceae. They include many seaweeds located in colder waters of the Northern Hemisphere. Brown algae are
Two specimens of Laminaria hyperborea, each showing the rootlike holdfast at lower left, a divided blade at upper right, and a stemlike stipe connecting the blade to the holdfast.
Fucus vesiculosus produces numerous gas-filled pneumatocysts (air bladders) to increase buoyancy.
Growth in Dictyota dichotoma occurs at each frond tip, where new cells are produced.