What are the criteria of classification of algae by fritsch?
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F.E. Fritsch (1935, 1945) in his book “The Structure and Reproduction of the Algae” proposed a system of classification of algae. He treated algae giving rank of division and divided it into 11 classes. His classification of algae is mainly based upon characters of pigments, flagella and reserve food material.
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Presence of pigments which imparts traditional color on algae is the main basis for the classification of algae.
Chlorophyceae
- Chlorophyll a and chlorophyll b
- Green
Phaeophyceae
- chlorophyll a, chlorophyll c, fuxoxanthin
- Brown
Rhodophyceae
chlorophyll a and chlorophyll d, phycoerythrin
Red
Now, algae are classified on different criteria such as:
Flagellation
Storage products
Cellular organization
Constitution of cell walls
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