What is inflorescence and its types Class 11?

A flower is a modified shoot wherein the shoot apical meristem changes to floral meristem. The arrangement of flowers on thefloral axis is termed as inflorescence. Depending on whether the apex gets converted into a flower or continues to grow, two major types of inflorescences are. racemose.

What is the special type of inflorescence?

Some inflorescences undergo modifications. It results in peculiar arrangement of flowers and opening of flowers. Such inflorescences are called special types. Verticillaster, cyathium and hypanthodium are the special types.

What is inflorescence with example?

An indeterminate inflorescence may be a raceme, panicle, spike, catkin, corymb, umbel, spadix, or head. In a raceme a flower develops at the upper angle (axil) between the stem and branch of each leaf along a long, unbranched axis. An example of a raceme is found in the snapdragon (Antirrhinum majus).

What is inflorescence explain the types of inflorescence with diagram?

The arrangement of flowers on the floral axis is known as Inflorescence. Flowers are the attractive part of the plants and in some plants they play an important and main function in the process of reproduction. The modified part of the seed plants where the flowers are formed are said to be Inflorescence.

What is the inflorescence of sunflower?

capitulum
– The inflorescence of sunflower is a capitulum, consisting of numerous florets arranged in a spiral pattern.

What is inflorescence explain two types of inflorescence?

The inflorescence is the manner in which the flowers are arranged on the flowering axis. During the flowering season, the vegetative apex of the stem gets converted into a floral meristem. Based on whether the floral axis continues to grow or end in a flower, the inflorescence is classified into racemose and cymose.

What is the inflorescence of a rose?

Solitary chyme. Hint: Inflorescence is an arrangement of clusters of flowers on the main stem. The stem that is the base of the inflorescence is known as the peduncle. China rose or Hibiscus belongs to the Malvaceae family.

What is compound inflorescence?

Compound Inflorescence: In this type of inflorescence the main axis (peduncle) branches repeatedly once or twice in racemose or cymose manner. In the former case it becomes a compound raceme and in the latter case it becomes a compound cymose inflorescence.

Why do flowers have inflorescence?

Inflorescences are complex structures with many functions. At anthesis they present the flowers in ways that allow for the transfer of pollen and optimization of the plant’s reproductive success. During flower and fruit development they provide nutrients to the developing flowers and fruits.

What is the inflorescence of hibiscus?

Hibiscus flower has Solitary cyme. In this type of inflorescence the stem or the axillary of the leaf shows a single flower that is joint on the pedicab, then the flower is called a solitary cyme, and in Hibiscus it is axillary.

Is Marigold an inflorescence?

It is a type of racemose inflorescence. The peduncle is short and flattened. Flowers are called florets and arranged in a centripetal manner.

What is Raceme inflorescence?

Definition of raceme : a simple inflorescence (as in the lily of the valley) in which the flowers are borne on short stalks of about equal length at equal distances along an elongated axis and open in succession toward the apex — see inflorescence illustration.

What is the difference between racemose and cymose?

In Racemose inflorescence,the main axis continues to grow. In Cymose inflorescence,the main axis terminates in a flower.

Growth is unlimited in racemose inflorescence. Growth is limited in cymose.

The flowers are borne in an acropetal succession in racemose.

What is terminal inflorescence?

In an indeterminate inflorescence there is no true terminal flower and the stem usually has a rudimentary end. In many cases the last true flower formed by the terminal bud (subterminal flower) straightens up, appearing to be a terminal flower.

What is a spike flower?

A flower spike is a kind of inflorescence where a group of stalk-less flowers grow on an upright stem. The inflorescence of a plant is the arrangement of the individual flowers on the stem.