Which criteria are used for the classification of plants? Explain with reasons
Answers
Answer:
From the Linnaean beginning, the principal criterion for the classification of flowering plants was the flower itself — its structure, number of parts, etc. This was, for the most part, a pretty accurate way of classifying flowering plants.
Explanation:
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Answer:
The classification is done on the basis of:
Differentiation
Presence or absence of vascular tissues
Production of seed
Covering of seed
No. of cotyledons
Criteria used for the classification of plants:
Thallophyta: Plant body without roots, leaves. Undifferentiated . These are Mainly aquatic .These are Commonly called as algae.
Examples: Chara, Spirogyra, Ulothrix
Bryophyta: These are Differentiated into stem and leaf like structure.The Vascular tissues are absent .These are Called as amphibians of plant kingdom as they Lives in marshy and need water for reproduction. In Bryophyta we observe Alternation of generation (metagenesis).
Example: Riccia, Funaria, MArchantia
Petridophyta: These are Well differentiated . Vascular tissues are present.Seeds are absent.
Example: Fern
Gymnosperm : Differentiated Vascular tissues .In this ,Seeds are naked. These are Generally Perennial, Evergreen
Example: Pine, Deodar, Cycas
Angiosperm : Differentiated, Vascular Tissue .They have Seeds within the fruit. Angiosperms are Commonly called as flowering plants . The seeds of Angiosperms contain cotyledons divided into two parts: Monocots and Dicots.
REFER CLASS XI NCERT BIOLOGY.
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