Chlorophyceae (green algae) Phaeophyceae (brown algae) Rhodophyceae (red algae). PNAS, v.36 #4 pp.246-248. He classified spore producing plants into various divisions. CLASSIFICATION OF ALGAE. classification of algae was given by F.E Fritsch (1935) in his book ‘The Structure and Reproduction of the Algae’. Their photosynthetic pigments are more varied than those of plants, and their cells have features not found among plants … Algae Classification. Smith, Gilbert 1950 Inheritance of sexuality in Chlamydomonas reinhardi. He did not use the term algae. Sexuality in Chlamydomonas 1948 Science (New York, N.Y.) SMITH … 1. Smith: Freshwater Algae of the United States; McGraw-Hill, New York (1950), with its coverage of a broad geographic region, as well as regional works such as G.W. o the presence or absence of flagella (as well as the number and Following and improving the classification systems introduced by Carl Linnaeus, Ernst Haeckel, Robert Whittaker, and Carl Woese, Cavalier-Smith's classification attempts to incorporate the latest developments in taxonomy. Smith proposed the classification of algae taking into consideration the evolutionary principles proposed by Fascher (1914). It has been over 50 years since the last edition (1950) of Smith's "Freshwater Algae of the United States" and much has changed in our knowledge of the classification of the "Algae". Smith, Gilbert M. 1951 The classification of algae. SMITH G.M. Algae exist in environments ranging from oceans, rivers, and lakes to ponds, brackish waters, and even snow. Chlorophyceae (Green algae) General characterstics of Chlorophyceae. For instance, algae living in snow contain carotenoid pigments in addition to chlorophyll, hence giving the surrounding snow a distinctive red hue. The account of algae dates back to ancient Chinese literature and it is a believe that along with the origin of plant sciences, the recognition of algae as a group has taken place. Algae are usually green, but they can be found in a variety of different colours. The biological classification system of life introduced by British zoologist Thomas Cavalier-Smith involves systematic arrangements of all life forms on earth. o cell wall composition and structure. Manual of Phycology--an instroduction to the algae and their biology 27:13-19. There is three main Algae classification: Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. On the basis of photosynthetic pigments algae classified into three classes. Algae, singular alga, members of a group of predominantly aquatic photosynthetic organisms of the kingdom Protista.Algae have many types of life cycles, and they range in size from microscopic Micromonas species to giant kelps that reach 60 metres (200 feet) in length. Examples are Chlamydomonas, Spirogyra, and Chara; Phaeophyceae – Also called as brown algae, they are predominantly marine. Until now, microscopists have relied on the still useful monograph by G.M. These are now known to contain several quite different organisms from Euglena to … It is the largest class of algae; •The current systems of classification of algae are based on the following main criteria: o kinds of photosynthetic pigments, o type or chemical nature of photosynthetic energy storage products o photosynthetic membranes’ (thylakoids) organization and other features of the chloroplasts. 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