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red algae
red algae Taxonomic group (phylum) of reddish algae, the Rhodophyta. They are numerous in tropical and subtropical seas. Most are slender, branching seaweeds that form shrub-like masses. Some become encrusted with calcium carbonate and are important in reef formation. Rhodophytes have red and purplish pigments, which absorb light for photosynthesis. They also have chlorophyll. They have complex life cycles with two or three stages, involving alternation of generations.
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"red algae." World Encyclopedia. 2005. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "red algae." World Encyclopedia. 2005. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O142-redalgae.html "red algae." World Encyclopedia. 2005. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-redalgae.html |
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red algae
red algae The common name for algae of the group Rhodophyta. While the majority of marine species are indeed some shade of red, freshwater species may be brown or blue-green. They are known from the Cambrian and were abundant in the succeeding Ordovician.
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MICHAEL ALLABY. "red algae." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "red algae." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O7-redalgae.html MICHAEL ALLABY. "red algae." A Dictionary of Plant Sciences. 1998. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-redalgae.html |
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red algae
red algae see seaweed ; Rhodophyta . |
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"red algae." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "red algae." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1E1-X-redalgae.html "red algae." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-redalgae.html |
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red algae
red algae See RHODOPHYCEAE.
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AILSA ALLABY and MICHAEL ALLABY. "red algae." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "red algae." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O13-redalgae.html AILSA ALLABY and MICHAEL ALLABY. "red algae." A Dictionary of Earth Sciences. 1999. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-redalgae.html |
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red algae
red algae See Rhodophyta.
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Cite this article
"red algae." A Dictionary of Biology. 2004. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "red algae." A Dictionary of Biology. 2004. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O6-redalgae.html "red algae." A Dictionary of Biology. 2004. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-redalgae.html |
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