Members of the kingdom Phaeophyta are the brown algae or seaweeds, a group of photosynthetic protists. They contain chlorophylls a and c, not a and b as do plants. The brown colour comes from the pigment xanthophyll. Many brown seaweeds have a blade or thallus and a holdfast for anchorage. They form great forests in some shallow oceans and there are about 1500 known species.
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- Introduction to the Phaeophyta Brief introduction to the brown algae or phaeophytes, a group of photosynthetic protists, almost all of which are marine, including rockweed and kelp. Includes biochemical information, reproduction and life cycle, and why they are no longer classified as plants.
- The Intertidal Rocky Shore: Brown Seaweeds Photographs of about 30 species of brown algae that grow around the coasts of New Zealand.