Category: Algae

FUCUS CLASSIFICATION OF FUCUS Sub-division :- Algae Class :- Phaeophyceae Order :- Fucales Family :- Fucaceae Genus :- Fucus Alga is exclusively marine. It is found attached to the rocks in the intertidal rocky coasts of the colder seas of the northern hemisphere. It is abundantly found along the coasts of British Isles, Northern European countries and Atlantic coast of America. During…

OEDOGONIUM CLASSIFICATION OF OEDOGONIUM​ Sub-division :- Algae Class :- Chlorophyceae Order :- Oedogoniales Family :- Oedogoniaceae Genus :- Oedogonium THALLUS OF OEDOGONIUM​ OOGONIUM OF OEDOGONIUM ANTHERIDIUM OF OEDOGONIUM​ DWARF MALE OR NANNANDRIUM OF OEDOGONIUM​ zygote of oedogonium IDENTIFICATION REFERENCES

ALGAE – DEFINITION, CHARACTERISTICS, CLASSIFICATION, EXAMPLES​ Algae and Fungi were first included in the group cryptogamia, established by Linnaeus. Later, this group was divided into Thallophyta, Bryophyta and Pteridophyta. Of these, Thallophyta included Algae and Fungi. The group Thallophyta shows following characteristics. Absence of differentiation into stem, root and leaves. Sex organs generally unicellular, if multicellular, sterile envelope or jacket is…

CLASSIFICATION OF VOLVOX​ Sub-division :- Algae Class :- Chlorophyceae Order :-  Volvocales Family :- Volvocaceae Genus :- Volvox     GENERAL CHARATERSTICS OF VOLVOX​ :- Thallus is multicellular, motile and a coenobial colony. Colonies are mostly spherical, rounded or oval in shape. It is hollow in the centre and cells are arranged in a single layer towards the periphery. Layer of cells is surrounded…

CLASSIFICATION OF SCYTONEMA Sub-division :- Algae Class :- Myxophyceae Order :- Nostocales Family :- Scytonemataceae Genus :- Scytonema The genus Scytonema is usually found in sub-aerial habitats such as damp walls, brick-work, bark of the trees, etc. Filaments are interwoven to form a felt-like mass of considerable extent. Few species grow best on damp soil and others on the dripping surfaces of…

CLASSIFICATION OF SARGASSUM Sub-division :- Algae Class :- Phaeophyceae Order :- Fucales Family :- Sargassaceae Genus :- Sargassum Sargassum is marine in habitat and remains restricted to tropical seas, mainly of southern hemisphere. In India, species of this genus are found along the east coast, west coast, and Andman and Nicobar islands.   EXTERNAL FEATURES OF THALLUS​ OF SARGASSUM   Thallus is…

CLASSIFICATION OF RIVULARIA Sub-division :- Algae Class :- Myxophyceae Order :- Nostocales Family :- Rivulariaceae Genus :- Rivularia Rivularia commonly occurs in aquatic habitats, as also on damp soil near river bed, between mosses on earth, moist rocks and in flowing waters. It is epiphytic, occurring on Nitella and other submerged stems and leaves of water plants.     EXTERNAL FEATURES OF…

CLASSIFICATION OF POLYSIPHONIA Sub-division :- Algae Class :- Rhodophyceae Sub class :- Florideae Order :- Ceramiales Family :- Rhodomelaceae Genus :- Polysiphonia Species of Polysiphonia are exclusively marine.  These are most commonly found along the Atlantic  and Pacific coasts, in littoral and sub-littoral regions.  A few species occur as epiphytes on mangroves or  brown seaweeds. A small number of species are  also found along the…

CLASSIFICATION OF OSCILLATORIA Sub-division :- Algae Class :- Myxophyceae Order :-  Oscillatoriales Family :- Oscillatoriaceae Genus :- Oscillatoria One can hardly miss Oscillatoria when on a collection trip. It is almost cosmopolitan and occurs abundantly on moist rocks, cliffs, damp soil, muddy banks of streams, ponds, surface of the water reservoirs, sewage ponds, etc. A few species are marine and float…