Which is not correct-a)In floral formulae fusion is indicated by enclo...
Explanation:
The correct answer is option B, i.e., "In papilionaceous corolla, the standard is posterior and the wing is anterior."
Floral Formula:
Floral formula is a shorthand representation of a flower's characteristics using specific symbols and notations. It provides information about the number, arrangement, fusion, and other features of the floral parts.
Adhesion and Fusion:
Adhesion refers to the union of similar floral parts, while fusion refers to the union of different floral parts. In floral formulae, adhesion is indicated by drawing a line above the symbols of the floral part, and fusion is represented by enclosing the figure within brackets.
Papilionaceous Corolla:
Papilionaceous corolla is a type of corolla found in the flowers of the Fabaceae (Leguminosae) family, which includes plants like peas, beans, and lentils. It is characterized by a specialized arrangement of petals, consisting of five petals in total - one large upper petal called the standard or banner, two lateral petals called wings, and two lower petals fused to form a boat-shaped structure called the keel.
Standard, Wing, and Keel:
In papilionaceous corolla, the standard petal is located at the top and is usually the largest and most conspicuous petal. The two wing petals are located on the sides and are usually smaller than the standard. The keel petals are fused together to form a boat-shaped structure located at the bottom.
Correcting the Statement:
The statement mentioned in option B is incorrect because the standard petal is actually located anteriorly (front) and the wing petals are located posteriorly (back) in papilionaceous corolla. Therefore, the correct statement should be "In papilionaceous corolla, the standard is anterior and the wing is posterior."
Summary:
In floral formulae, adhesion is indicated by a line drawn above the symbols of the floral part, and fusion is represented by enclosing the figure within brackets. In papilionaceous corolla, the standard petal is located anteriorly and the wing petals are located posteriorly. Therefore, option B is the incorrect statement among the given options.
Which is not correct-a)In floral formulae fusion is indicated by enclo...
Here option 2 is wrong because keel are anterior not the wings
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