Economical importance of bryophytes

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ECOLOGICAL IMPORTANCE OF BRYOPHYTES Mosses and Bryophytes are the first organiasms to colonise rocks. They colonise rock by acidic secretion. This acidic secretion is due to the death of mosses. When the rock is decomposed it helps in soil formation. Therefore New soils are formed. The soil act as binders.  It prevent soil erosion. The water retention capacity of the soil is high ie, water holding capacity of the soil is high.  This reduces surface water run-off which prevent soil erosion. Bryophyte helps in the recycling of nutrients. ECONOMICAL IMPORTANCE OF BRYOPHYTES. 1) SPHAGNUM Sphagnum has high absorptive power with antiseptic property. This can be used to replace cotton in bandages. 2) MERCHANTIA   Mercahntia cures pulmonary tuberculosisand affliction (pain) in liver. Antibiotic substances are also extracted from bryophytes. it also acts as antiseptic, and as preservative POLYTRICHUM Polytrichum dissolove stone in kidney and in gall bladder. 3) IN RESEARCH It is u...
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Chapman's classification of algae

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Chapman's system of classification


  V, J Chapman 1962 divided algae into the following four phyla on the basis of morphology, pigmentation and biochemical characters. 
      
    He divided the algae in to following  foulum. 
Phylum 1.Euphycophyta
                      Class 1.charophyceae
                                 2.chlorophyceae
                                 3.phaeolhyceae
                                 4.rhodophyceae

Phylum 2.myxomycophyta
                        Class. Myxophyceae (Cyanophyceae)

Phylum 3.chrysophyta
                         Class 1.chrysophyceae
                          Class 2.xanthophyta
                           Class 3.bacillariophyceae

Phylum 4.pyrrhophycophyta
                             Class 1.cryptophyceae
                             Class 2.diniphyceae



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