What is the floral formula of family Liliaceae?

What is the floral formula of family Liliaceae?

Floral formula of family Liliaceae is a P3+3A0Goverline class 11 biology CBSE.

Which type of Aestivation is found in calotropis?


What is Aestivation and types?

Aestivation is the mode of arrangement of sepals or petals in the floral bud with respect to the other members of the same whorl. It is divided into five main types:- A)Valvate Aestivation:-when sepals or petals are arranged in a whorl and just touch margin of one another as seen in Calotropis.

Which type of Aestivation is found in pea?


What is meant by Aestivation?

Definitions of aestivation. noun. (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period. synonyms: estivation. see more.

What is Aestivation example?

Different types of aestivation are: Twisted – if one margin of the appendage overlaps the adjacent one, it is twisted, which can either be. clockwise or anti-clockwise. Example – cotton. Valvate – In a whorl when petals or sepals just touch each other at the margin without overlapping, it is.

What is an example of Estivation?

Estivation is one form of dormancy that some animals use to conserve energy under extreme hot and dry conditions. ... Animals that estivate include lungfish (which estivate for up to three years), earthworms, hedgehogs, snakes, crocodiles, snails, and desert tortoises.

What are the types of Aestivation?

Classes of aestivation include:

  • imbricate – overlapping. ...
  • crumpled.
  • decussate.
  • induplicate – folded inwards.
  • open – petals or sepals do not overlap or even touch each other.
  • reduplicate – folded outwards.
  • valvate – margins of adjacent petals or sepals touch each other without overlapping.

What are the 4 types of Aestivation?

They are as follows:

  • Valvate aestivation: Sepals or petals in a whorl just touch one another. ...
  • Twisted aestivation: One margin of the appendage overlaps the margin of the next appendage. ...
  • Imbricate aestivation: Margins of sepals or petals overlap one another but not in any particular direction. ...
  • Vexillary aestivation:

What is Polypetalous?

: having or consisting of separate petals.

What is Polypetalous give an example?

Polypetalous: Flowers having free petals. Example: Rose and Camellia. Gamopetalous: Flowers have fused or united petals. Example: Bindweed and elderberry flowers have gamopetalous petals.

What is the meaning of Polysepalous?

Polysepalous, pol-i-sep′a-lus, adj. having the sepals separate from each other. ... It is more common among polysepalous and polypetalous plants than in those in which the sepals or petals are united together.

What is the main function of sepal?

The sepal is a defensive organ that encloses and protects the developing reproductive structures. At maturity, the sepal opens when the flower blooms. The outer sepal epidermis (see Fig.

What is Polysepalous and Gamosepalous?

When the sepals of a flower are fused, they are called gamosepalous. ... When the sepals of a flower are free, they are called polysepalous. Eg: Rose and Southern magnolia.

What is the meaning of monadelphous?

of stamens. : united by the filaments into one group usually forming a tube around the gynoecium.

What is monadelphous give example?

Monadelphous stamens- Filaments of all stamens are united forming a single bundle but the anthers are free. Example- Cotton. 2. Diadelphous stamens- Filaments are united forming two bundles and anthers are free. Example- Pea.

What is Diadelphous give an example?

Example: Hibiscus. DIADELPHOUS: The filaments of the stamens fused and form into two bundles. Example: Dolichos. In Dolichos, 10 stamens are present, filaments of 9 stamens are fused and form into one bundle and 10th stamen remains free act as a second bundle.

What is Polyandrous flower?

Polyandrous: When the stamens of a flower are free, the condition is called polyandrous. Example: Petunia. 2. Monadelphous: When the filaments of the anthers in a flower are fused into one group, the condition is called monadelphous.