The characteristics of the brown algae are:
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The pigment present in brown algae is the brown containing yellow fucoxanthin, Chl a, Chl C, and other carotenoids.
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The cell wall contains cellulose and phycocolloid; the alginic acid.
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Reserve food material is the manitol as well as the polysaccharides laminarin and fats.
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The brown algae are found as simple filamentous forms and also a giant one.
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The unicellular forms are absent.
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The large brown algae are known as the trees of sea or kelps.
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Reproduction is sexual; isogamous as well as the oogamous reproduction is common.
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Life cycle shows alternation of generation.
