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

Explain concept of digestion of proteins, Digestion of Proteins The pr...

Digestion of Proteins The proteolytic enzymes secreted  by  gastric juice, pancreatic juice  and  intestinal juice cause the hydrolysis of proteins in  the gastrointestinal tra

FISHERIES, skeletal system of fish .exoskeleton and endoskeleton

skeletal system of fish .exoskeleton and endoskeleton

Explain about pentoses, What are pentoses? To what organic group do pentose...

What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose? Pentoses are carbohydrates made of five carbons. Deoxyribose is

Integumentary system - glands, Glands - 1 .      SEBACEOUS GLAND - ...

Glands - 1 .      SEBACEOUS GLAND - Absent in palm and sole. Holocrine in nature. Branched, alveoli are present, sac like in appearance. Generally attached to fo

Explain the requirements of special stains, Explain the requirements of Spe...

Explain the requirements of Special Stains? Special stains are required to make spores clearly visible. Different techniques like negative staining, dorner staining method, sch

Features of plant hormones, Features of Plant Hormones The following a...

Features of Plant Hormones The following are the important features of the role of plant hormones in growth and development: The hormone may initiate one response

Illustrate fundamental sexual life cycles, Q. What are the three fundamenta...

Q. What are the three fundamental sexual life cycles studied in Biology? Which of them corresponds to metagenesis? Which of them is the human life cycle? Sexual reproduction ma

Erythema marginatum, This is a rare manifestation seen in less than 5 per c...

This is a rare manifestation seen in less than 5 per cent of ARF patients. It is erythematous, macular, evanescent, non-pruritic rash with pale centre and serpiginous or rounded bo

Why on earth would be drinking milk to feel better, If a person has a stoma...

If a person has a stomach ulcer (that is aggravated by excessive hydrochloric acid {HCl} secretion ), why on earth would he or she be drinking milk to feel better, when milk is als

she kept forgetting her appointment with the dentist, Listed below are exa...

Listed below are examples of behaviors that typify a defense mechanism at work. For each example choose the correct defense mechanism and explain the reason for your choice. 1. J

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