Describe bentham and hookers system, Biology

Assignment Help:

Q. Describe Bentham and Hookers System?

Bernard de Jussieu (1699-1776) tried to classify the plants in Royal Garden, Paris. During this exercise he developed a system of classification which is, in fact, the first natural system of classification. Soon after, A.P, de Candole (1778-1841) proposed a system of classification which was nothing but the modified form of de Jussieu's system.

Based on the general principle of Form-relationships, the most popular of the natural systems of classifications-was proposed by two British Botanists George Bentham c1800-1884) and Sir Joseph Dalton Hooker (1817-1911). Hooker being the Director of Royal Botanic Gardens, Kew, had all the facilities at his disposal. Bentham and Hooker published the monumental work "Genera Plantarum" (1862-1883). This work includes names, accurate description and classification of all the seed plants

known at the time (nearly 97,205 species). The term family was designated as order and the term "Order" was named as. Cohort. This system of classification is adopted in most of the common wealth countries including our country. In all 202 families were recognised in this system. The starting family being Ranunculaceae and Poaceae as the ending family.


Related Discussions:- Describe bentham and hookers system

Pisces, which organs are involved in respiration of annelid and what is it ...

which organs are involved in respiration of annelid and what is it called ,what by products are formed and how amount of ATP is released?

Secretion of parathormone and calcium blood level, Q. What is the relation ...

Q. What is the relation between secretion of parathormone and the calcium blood level? The parathormone increases the calcium blood level since it stimulates the resorption (re

Role of nerves - regeneration, Role of Nerves - Regeneration It has b...

Role of Nerves - Regeneration It has been seen that soon after amputation nerves invade the regeneration blastema. If the stump is denervated by cutting the nerves supplying

HIV VIRUS, what is the structure of hiv virus?

what is the structure of hiv virus?

Polysaccharide sugars, Polysaccharide - polymer composed of monosaccharide...

Polysaccharide - polymer composed of monosaccharide monomers Starch - Energy storage in plants à straight (amylose) and branched (amylopectin) chains of α-glucose Glycogen

Determine the term - leuconoid sponge, Determine the term - Leuconoid spong...

Determine the term - Leuconoid sponge. The most complex of the three different sponge architectures. Choanocytes are found in chambers, and there is not any spongocoel. Water e

What do you mean by subxiphoid long axis sweep, Q. What do you mean by Subx...

Q. What do you mean by Subxiphoid Long Axis Sweep? This sweep begins with keeping the transducer at subxiphoid region, positioning directly posterior with marker pointing towar

Humans have selectively bred many radically, Humans have selectively bred m...

Humans have selectively bred many radically different domestic animals(e.g., St. Bernard and Chihuahua dog breeds). Does this activity result in evolution? why or why not?

Why the recipient important in transfusions, Why is the determination of th...

Why is the determination of the blood types of the donor and of the recipient important in transfusions? Red blood cells have dissimilar antigens in the outer surface of their

Transgenics considered a threat to the environmental safety, Q. Why are tra...

Q. Why are transgenics considered a threat to the environmental safety? The Transgenics can be dangerous to the whole biosphere since the transfer of genes between species may

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