Consider the following four statements (i), (ii), (iii) and (iv) and select the right option for two correct statements. Statements : (i) In vexillary aestivation, the large posterior petal is called standard, two lateral ones are wings and two small anterior petals are termed keel. (ii) The floral formula for Liliaceae is [figure] (iii) In pea flower the stamens are monadelphous. (iv) The floral formula for Solanaceae is [figure] The correct statements are
- (i) and (iii)
- (i) and (ii)
- (ii) and (iii)
- (iii) and (iv)
Answer
(2) (i) and (ii)
Solution
(i) Correct: as per NCERT, in vexillary (papilionaceous) aestivation there are five petals; the largest (standard) overlaps the two lateral petals (wings), which in turn overlap the two smallest anterior petals (keel).
(ii) Correct: as per NCERT, the floral formula of Liliaceae is ⊕, bisexual, P(3+3) A3+3 G(3).
(iii) Incorrect: in pea (Fabaceae) the ten stamens are diadelphous, A(9)+1, not monadelphous.
(iv) Incorrect: as per NCERT, the floral formula of Solanaceae is ⊕, bisexual, K(5) C(5) A5 G(2) (stamens epipetalous), not K(3) C(3) A(4) G(2).
∴ The correct statements are (i) and (ii).
Answer: (2)