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'''The Group Names''' are - Green algae: division Chlorophyta; Euglenids: division Euglenophyta; Dinoflagellates and related forms: division Pyrrophyta; Chrysophytes and diatoms: division Chrysophyta; Brown algae: division Phaeophyta; and Red algae: division Rhodophyta.
 
'''The Group Names''' are - Green algae: division Chlorophyta; Euglenids: division Euglenophyta; Dinoflagellates and related forms: division Pyrrophyta; Chrysophytes and diatoms: division Chrysophyta; Brown algae: division Phaeophyta; and Red algae: division Rhodophyta.
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The main distinctions are based upon the inclusion or not of three types of chlorophylls, special carotenoids and phycobilins; composition of the cellulosic Cell wall (nay, yay and double - and with or without algin); and the Nature of reserve materials (be they starch, paramylum and fats, starch and oils, leucosin and oils, or laminarin and fats);  
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The main distinctions are based upon the inclusion or not of three types of chlorophylls, special carotenoids and phycobilins; composition of the cellulosic Cell wall (nay, yay and double - and with or without algin); and the Nature of reserve materials (be they starch, paramylum and fats, starch and oils, leucosin and oils, or laminarin and fats); the number and types of Flagella - be there generally two identical flagella per Cell, one two or three flagella per Cell, two flagella dissimilar in form and position on Cell, two flagella arrangement variable, two flagella of unequal length, or none;  and Range of Structure - includes Unicellular, coenocytic, filamentous, and Plantlike Multicellular Forms.
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T'was Figure 26.1.
    
== The Natural Distribution of Algae ==
 
== The Natural Distribution of Algae ==
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