Question:
Which one among the following groups of plants is placed in the beginning of Engler and Prantl's system of classification?
Which one among the following groups of plants is placed in the beginning of Engler and Prantl's system of classification?
Updated On: Jun 23, 2023
- Plants with flowers having polypetalous corolla
- Plants with flowers having gamopetalous corolla
- Plants with flowers which are naked, unisexual and simple
- Plants with flowers having monochlamydeous perianth
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The Correct Option is C
Solution and Explanation
Engler and Prantl's system of classification was jointly published in monumental work Die Naturlichen pflanzenfamilien in 1892. It is the first phylogenetic system of classification which includes all the plants from algae to angiosperms arranged in an evolutionary sequence from simplicity to complexity. Their system was based on that of Eichler. The phanerogams were divided into Gymnospermae and Angiospermae.
According to their classification system:
The angiosperms have a polyphyletic origin from some unknown fossil gymnosperm.
- The simplest angiospermic flower consisting of only the essential whorls (without calyx and corolla i.e., naked) is the most primitive one.
- Unisexual flowers are more primitive than the bisexual flowers.
- The gamopetalous corolla has originated from the polypetalous one.
According to their classification system:
The angiosperms have a polyphyletic origin from some unknown fossil gymnosperm.
- The simplest angiospermic flower consisting of only the essential whorls (without calyx and corolla i.e., naked) is the most primitive one.
- Unisexual flowers are more primitive than the bisexual flowers.
- The gamopetalous corolla has originated from the polypetalous one.
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Concepts Used:
Plant Kingdom
The Plant Kingdom comprises all the plants that have some shared characteristics. These are bacteria (prokaryotes), photosynthetic plants, fungi, and several non-photosynthetic plants.
Read Also: Two Kingdom Classification
Several features of Kingdom Plantae are as follows:
- They are stationary. They are static and usually remain in one place only.
- They have branches that expanded and green leaves due to the presence of chlorophyll.
- They are an autotrophic mode of nutrition that simply means they prepare their food with the help of water, sunlight and carbon dioxide. It is further known as self-nutrition.
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- They have an inelastic wall around their cell known as a cell wall comprised of cellulose.
- There is an absence of the nervous system and excretory system.
- Reproduction is entirely dependent on air, insects and water. Asexual and vegetative method of reproduction is noticed or detected.
- The non-photosynthetic plants acquire their food through parasitism, i.e through their host like Indian pipe.
Read More: Classification of Plants