Morphology in relation to taxonomy, Biology

Assignment Help:

Q. Morphology in relation to taxonomy?

Morphology is the basic tool of taxonomy, because identification is primarily based on the characters of the plant. The morphological characters are easily observable in both living plants and in herbarium specimens. They have provided the basic information for a majority of the classification systems in plant taxonomy. In recent years, electron microscopy has provided a valuable tool to the modern taxonomist to study different morphological characters at high magnification and this information is used for purposes of identification, classification and for establishing relationships.

Heywood and Dakshini used the scanning electron microscope (SEM) to study the surface patterns of the fruit (called mericarp) in 40 species from 12 genera of the family Umbelliferae. They found that many micro characters on the fruit wall observed with the help of the SEM are of great value in clarifying the relationships of the different genera. They also observed a great diversity in the structure of the fruit in these species and this provides new information of significant practical value for taxonomic purposes.

Most taxonomists have traditionally separated the genus Glinus Linn. from the genus Mollugo Linn. on the basis of seed characters; but sometimes there were difficulties in proper identification of the two genera. With the help of the SEM, the seed surface patterns have been examined in detail to establish the importance of seed surface micro characters in the identification of the genera. Also, within the genus Mollugo, seed-coal micro morphology has helped in identifying different species.


Related Discussions:- Morphology in relation to taxonomy

St-segment depression after hyperventilation, Q. ST-segment depression aft...

Q. ST-segment depression after  hyperventilation? Patients with abnormal autonomic drive have demonstrated ST-segment depression after hyperventilation as well as after exercis

Misuse of biology, MISUSE OF BIOLOGY - Biological achievements are used...

MISUSE OF BIOLOGY - Biological achievements are used against human race, e.g. 1 .       Bioweapons anitbiotic resistant infective micro-organism are used in wars. e.g., A

What is the primary structure of a protein, What is the primary structure o...

What is the primary structure of a protein? What is the significance of the primary structure? The primary protein structure is the linear sequence of amino acids that form the

Explain insect resistant crops in evolutionary way, Explain Insect resistan...

Explain Insect resistant crops in Evolutionary way Insects are a natural selection pressure so plants resistant to certain insects could have an evolutionary advantage (in

Forestry, Forestry : It concerned with protection or development of forest ...

Forestry : It concerned with protection or development of forest and to explore the outcome or economic potential of forest. Forestry is the art or science of tree resources, inclu

Roles of fatty acid, Fatty acids have four main biological roles: 1.  Th...

Fatty acids have four main biological roles: 1.  They are used to create sphingolipids and glycerophospholipids which are necessary elements of biological membranes; 2.  Nume

Preet, what is microbiology

what is microbiology

Some common air pollutants, The major air pollutants are: (i)     Carbo...

The major air pollutants are: (i)     Carbon monoxide, CO (ii)   Nitrogen oxides, (NO)x (iii) Sulphur oxide, (SO)x (iv) Ground level ozone (O3) (v)   Hydrocarbons (

Nursing responsibilities while administering immunization, NURSING RESPONSI...

NURSING RESPONSIBILITIES WHILE ADMINISTERING IMMUNIZATION Use one sterile syringe and needle for each injection.  Use only the diluent supplied along with measles and

Explain about phylum annelida, How is the respiratory system of beings of ...

How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be cutaneous or branchial. Cutaneous respiration happens due to the r

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd