What is the meaning of Basipetal arrangement?Author: Colby Quigley | Last update: Thursday, June 2, 2022
Basipetal succession is a type of inflorescence ( arrangement of flowers on the floral axis) in which the main axis of the plant terminates in a flower and the new flowers and buds arise laterally from the bottom parts of the plant.
What is meant by Basipetal arrangement?
Basipetal order is the arrangement of older flowers at the apex and new flowers and buds at the base. Inflorescence main axis terminates in flower, typically the oldest flower. Therefore, the formation of flowers is definite or restricted.
What is difference between acropetal and Basipetal?
The main difference between acropetal and basipetal is that acropetal is the development, maturation or opening, in sequence, from the base towards the apex, whereas the basipetal is the development, maturation or opening from the apex towards the base in the sequence.
What do you mean acropetal succession?
Acropetal succession refers to the arrangement of flowers, where the older flowers are present at the base and younger flowers are present at the apex.
What do you mean by acropetal order of leaves?
Acropetal order is the arrangement of older leaves at the base and younger leaves at the apex.
acropetal or besipetal succession
Which inflorescence flower is produced in Basipetal order?
The Basipetal order is seen in the cymose inflorescence.
What is meaning of Acropetally?
(ə-krŏp′ĭ-tl) adj. Of or relating to the development or maturation of tissues or organs or the movement of substances, such as hormones, from the base toward the apex. a·crop′e·tal·ly adv.
What is sessile flower?
In botany, sessility (meaning "sitting", used in the sense of "resting on the surface") is a characteristic of plant parts (such as flowers and leaves) that have no stalk. ... A sessile flower is one that lacks a pedicel (flower stalk). A flower that is not sessile is pedicellate.
What are floral appendages?
Floral appendages include sepals, petals, androecium and gynoecium that are comprises a plant. Androecium and gynoecium are essential appendages while sepals and petals are non essential appendages . The flower is a modified shoot which possesses different floral appendages at successive nodes.
What is acropetal and centripetal succession?
Acropetal succession: It is a modified form of racemose inflorescence in which the older flowers are at the base and younger ones are at the apex. Centripetal succession: It is a modified form of racemose inflorescence in which the peripheral flowers mature first and then maturation proceeds towards the centre.
What is capitulum discuss with examples?
1 : a rounded protuberance of an anatomical part (such as a bone) 2 : a racemose inflorescence (as of the sunflower) with the axis shortened and dilated to form a rounded or flattened cluster of sessile flowers — see inflorescence illustration.
What is Apex in plants?
In botany, apex refers to the highest point or vertex of a plant stem or root. The shoot apex is where fresh stems, leaves, and other parts of a plant grow after the old parts fall off or dry up. In some cases, such as monocot stems, the shoot apex tends to be more elongated.
What is androecium and gynoecium?
Androecium and gynoecium are the two, opposite reproductive organs of the flower, the sexual reproductive structures in angiosperms. Androecium is also called stamens, which comprises of anther and filaments while gynoecium is also called the pistil or carpel, which comprises of stigma, style, and ovary.
What is Bracteate and Ebracteate?
Flowers with bracts i.e. reduced leaf found at the base of the pedicel are called bracteate flowers, and ebracteate flowers are the flowers without bracts. Bracts are small leaf-like structures present at the base of a flower.
What is Calyx and Corolla?
Calyx and corolla are two important parts of a flower. They are together called perianth. Calyx is the collection of sepals while the corolla is the collection of petals of a flower. Calyx basically protects the developing flower and provides structural support to the flower.
What does Corolla mean?
Definition of corolla
: the part of a flower that consists of the separate or fused petals and constitutes the inner whorl of the perianth. Other Words from corolla Example Sentences Learn More About corolla.
What is receptacle in flower?
Receptacle: The part of a flower stalk where the parts of the flower are attached.
What is indefinite inflorescence?
racemose inflorescence (indefinite inflorescence)
A type of flowering shoot (seeinflorescence) in which the growing region at the tip of the flower stalk continues to produce new flower buds during growth. As a result, the youngest flowers are at the top and the oldest flowers are at the base of the stalk.
What is the difference between racemose and Cymose inflorescence?
The main difference between racemose and cymose inflorescence is that the flowers are borne laterally and the main floral axis continues to grow in the racemose inflorescence, whereas in the cymose type, flowers are borne terminally on the floral axis and the main axis shows limited growth.
What is the difference between peduncle and pedicel?
The key difference between pedicel and peduncle is that pedicel is the stalk that holds an individual flower, while peduncle is the main stalk that holds a complete inflorescence. ... Thus, the peduncle is the stalk of the inflorescence.
What means pollen grain?
Definition of pollen grain
: one of the granular microspores that occur in pollen and give rise to the male gametophyte of a seed plant.
What are the 4 whorls of a flower?
A typical flower has four main parts—or whorls—known as the calyx, corolla, androecium, and gynoecium (Figure 1). The outermost whorl of the flower has green, leafy structures known as sepals.
What androecium means?
Definition of androecium
: the aggregate of stamens in the flower of a seed plant.
What is Tunica Corpus theory?
Tunica corpus theory was proposed by Schmidt in 1924. According to this theory, the shoot apex of the angiosperms has two distinct zones. The peripheral zone called as tunica and the central zone called as corpus. Tunica divides only in anticlinal plane and corpus divides in various planes.
Is Apex part of a leaf?
The leaf apex is a protruding part of a leaf where water droplets accumulate, and droplet separation occurs during drainage. ... (A) The statistical plot of the leaf apex angles, α, among different species of leaves in alphabetical order. According to the leaf apex angle, leaf apex can be classified into obtuse and acute.