A class of lower plants that comprises the brown algae.
- Class Phaeophyceae, division Heterokontophyta (or phylum Heterokonta, kingdom Protista); formerly division Phaeophyta.
- For marine plants, the argument would be different if we accepted the limited overnight acid accumulation in the Phaeophyceae as CAM, in view of the large biomass production of kelp.
- Phaeophyceae, or giant kelp, is a brown algae that is generally found in a costal, temperate, marine environment.
- There have been known several methods for preparing alginic acid or its alkali salts from the Phaeophyceae.
Modern Latin (plural), from Greek phaios 'dusky' + phukos 'seaweed'.
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