Vexillary.
Hence, the correct answer is ‘Vexillary‘.
Is pea is example of Vexillary aestivation?
Option D Vexillary: In vexillary aestivation, large posterior petals overlap margins of lateral petals, which in turn, overlap anterior petals. Examples are peas and beans.
What type of flowers are found in pea?
(These are called actinomorphic flowers.) Pea flowers are made up of five petals that are of different sizes and shapes (and occasionally different colors as well). The diagram at right shows a peanut (Arachis hypogaea) flower (another member of the Pea Family), that identifies the various flower parts.
What aestivation is found in bean flowers?
Answer: In pea and bean flowers, there are five petals, the largest (standard) overlaps the two lateral petals (wings) which in turn overlap the two smallest anterior petals (keel); this type of aestivation is known as vexillary or papilionaceous.
What is the type of aestivation in the corolla of pea plants Why is it called so?
Vexillary aestivation is the special arrangement where one large petal covers the other smaller petals. The two innermost, boat-shaped petals are called keels in this aestivation. The plants of Papilionaceae or legume family exhibit the ideal examples of vexillary aestivation. Was this answer helpful?
What is Vexillary aestivation?
Vexillary aestivation is the unique arrangement where the other smaller petals are covered by one large petal. The larger petal is called a vexillum, while the two curved petals which are laterally positioned are called wings. In this destination, the two inmost, boat-shaped petals are called keels.
What is the example of twisted aestivation?
Twisted aestivation – contorted or twisted aestivation is when one margin of the petal overlaps the margin of the next. This gives a twisted appearance to the corolla. Example – Hibiscus.
Which type of aestivation is found in cotton?
twisted aestivation
Cotton plant shows the twisted aestivation in which one margin of petal overlaps regularly the margin of the adjacent petal, and so on.
What is twisted aestivation?
In Twisted Aestivation, one edge of a petal covers the adjacent petal, while the other border is covered by another petal. The margins of one petal overlap those of the next, and the margins of the next overlap those of the next. Example: Ladyfinger, Hibiscus, Cotton, and China rose.
Why are peas called peas?
In AngloSaxon the word became pise or pisu; later, in English it was “pease.” So many people thought pease was plural that they persisted in dropping the “s” sound, thus making the word “pea.” The Latin name resembles the older Greek pisos, or pison.
Which type of aestivation is found in Cassia?
Ascending imbricate aestivation
Ascending imbricate aestivation is found in Cassia and Gulmohur.
Does bean have Vexillary aestivation?
In bean, a member of Family Papilionaceae the characteristic vexillary or papilionaceous aestivation is found. In China rose, aestivation is twisted where one margin of the appendage overlaps that of the next one and so on.
Which type of aestivation is found in Calotropis?
Valvate
Hence, the correct answer is ‘Valvate’.
Which flower shows Valvate aestivation?
Calotropis plant
Note: Valvate aestivation is seen in the Calotropis plant, imbricate aestivation is seen in Cassia and Gulmohar, and vexillary aestivation is seen in the pea and bean flowers.
What are the 4 types of aestivation?
Types of Aestivation
- Valvate. In this type of arrangement, the sepals and petals whorls just touch each other at the margin but do not overlap.
- Imbricate. In this arrangement, the sepals and petals overlap each other but not in any regular manner or in a nonspecific direction.
- Twisted.
- Vexillary.
- Quincuncial.
What type of Placentation is seen in sweet pea?
marginal
Placentation is marginal in sweet peas. The placenta forms a ridge on which ovules are borne in two rows.
What is the example of Imbricate aestivation?
Example: Imbricate aestivation occurs when the margins of petals or sepals overlap in any orientation. This kind of aestivation can be seen in Gulmohar, Cassia, and legumes.
What is Quincuncial aestivation?
It is a type of imbricate aestivation where the petals begin overlapping from the anterior end to the posterior end. The whorl of the perianth is arranged in a spiral fashion. It is rare and found only in pentamerous flowers.
Who shows Vexillary aestivation?
Complete answer:
Vexillary aestivation is found in Papilionaceae. Aestivation is divided into five main types:- Vexillary, Valvate, Twisted, Imbricate, and Quincuncial.
Which type of aestivation is found in Lady finger?
In cotton, China rose and lady’s finger margins of petals overlap that of the next one. This mode of arrangement (aestivation) is called twisted.
Which family has Vexillary aestivation?
family Fabaceae
Complete Answer:
A characteristic of the family Fabaceae is vexillary or descending imbricate aestivation. In it, two lateral petals (wings), which in turn overlap two anterior petals (keel), overlap the posterior largest petal (standard). It is also called the corolla of papilionacea.
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