Changes

The primary classification of algae is based upon cellular, not organismal properties: the chemical nature of the wall, if present; the organic reserve materials produced by the Cell; the nature of the photosynthetic pigments; and the nature and arrangement of the flagella borne by motile Cells. In terms of these characters, the algae are arranged in a series of divisions, summarized in Table 26.1.

The primary classification of algae is based upon cellular, not organismal properties: the chemical nature of the wall, if present; the organic reserve materials produced by the Cell; the nature of the photosynthetic pigments; and the nature and arrangement of the flagella borne by motile Cells. In terms of these characters, the algae are arranged in a series of divisions, summarized in Table 26.1.

TABLE 26.1 Major Groups of Algae:  These are characterized by i) the Pigment System (chlorophylls or other special pigments), ii) the composition of the Cell wall, or iii) the nature of reserve materials; and they have the following Group Names - 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.

== TABLE 26.1 ==

 

Major Groups of Algae:  These are characterized by i) the Pigment System (chlorophylls or other special pigments), ii) the composition of the Cell wall, or iii) the nature of reserve materials; and they have the following Group Names - 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.