Phaeophyta
Around 1,500 species and are common in cool marine waters. Some kelps yield algin, a chemical used as a smoothing or thickening agent in processing foods. Most species are attached to rocks by holdfasts but Sargassum Weed often floats in large mats.
"Brown algae. Multicellular marine plants characterized by the presence of chlorophyll a and c with fucoxanthin. The carbohydrate food reserve is laminarin. Motile cells are biflagellate, with one forward flagellum of the tinsel type and one trailing one of the whiplash type. A considerable amount of differentiation is found in some of the kelps, with specialized conducting cells for transporting photosynthate to dimly lighted regions of the plant present in some genera. There is however no differentiation into leaves, roots, and stem, as in the land plants. There are about 1,100 species."
Biology of Plants, Fourth Edition, Worth Publishers Inc., Stanford University, Peter H. Raven and Helena Curtis, ©1971
| Taxonomic Hierarchy | |
| Kingdom | Chromista |
| Subkingdom | Chromista |
| Division | Phaeophyta – brown algae |
| Direct Children: | |
| Class | Phaeophyceae |
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