In Hibiscus, aestivation of calyx is
a. contorted and valvate
b. twisted and valvate
c. valvate and twisted
d. vexillary and valvate
Answers
Answer:
Hibiscus belongs to family Malvaceae. Its flower contains five, free, petals.
In valvate aestivation, sepals or petals are present in a whorl and just touch one another at margin without overlapping.
In imbricate aestivation, margins of sepals and petals overlaps one another but not in any particular fashion.
Vexillary aestivation is the arrangement of corolla in which the anterior petal is innermost and posterior petal is outermost and largest.
In twisted aestivation, margin of one appendage overlaps the next one and so on. This kind of arrangement of petals is observed in flower of Hibiscus.
Therefore, the correct answer is option B.
Explanation:
hibiscus comprises five petals that remain free but creates an overlapping arrangements at the margin of the appendages this is a type of twisted aestivation twisted aestivation is also known as convolvted or contorted aestivation this type of aestivation is found in cotton, lady finger etc