Flowers – A flower, sometimes known as a blossom or flower, is a reproductive structure found in flowering plants (plants of the order Angiosperma).
The biological function of the flower is to facilitate reproduction, usually by providing a mechanism for the sperm to join the egg.
Flowers may facilitate cross-pollination (mixing of sperm and eggs from different individuals in a population) resulting in fertilization or allow self-union during self-pollination (mixing of sperm and eggs).
There are two types of pollution: self-pollution and cross-pollution Self-pollination occurs when the anther discharge of another flower accumulates on the stigma of the same flower or on another plant.
Cross-pollination is when pollen is transferred from the pollen of one flower to the stigma of another flower of a different individual of the same species.
Self-pollination occurs in flowers where the cap and carpel mature at the same time and are positioned so that the pollen can land on the stigma of the flower. This pollinator requires no investment from the plant to provide nectar and nectar as food for pollinators.
Many flowers have evolved to be attractive to animals, encouraging them to become survey transmission vectors. After fertilization, the ovule of the flower develops into a fruit containing seeds
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In addition to facilitating the reproduction of flowering plants, flowers have long been appreciated by humans for bringing beauty to the environment and have been used in romance, ritual, esotericism, magic, religion, holistic medicine, and as a source of food. .
The flower comes from Middle Glacial flour, which referred to the reproductive structure of both ground grains and plants before its division in the 17th century. It is originally from the Latin name of Flora, the Italian goddess of flowers The original word for the wonderful flower was flower,
It can be considered in two parts: vegetative parts, which are non-reproductive structures such as petals; and reproductive or sexual parts A stereotypical flower consists of four structures attached to the top of a short stalk or axil, called a receptacle. Each of these parts or floral organs is arranged in a spiral called a ghor
The four main whorls (starting at the base or lowest node of the flower and working upwards) are the calyx, corolla, androecium and gynoecium. Together, the calyx and the non-reproductive part of the corolla flower are called the perianth, and in some cases they may be separate. If so, they are described as tepals
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Separate, collectively called calyxes, are the modified leaves that appear on the outer surface of the flower They are leafy because they have a broad base, stomata, stipules and chlorophyll.
They can be productive, but mostly they will help spread the fruit If the calyx is fused together it is called gamosepalous
Petals, along with the corolla, are nearly or completely hairless leaf-like structures that form the interior of the perianth. They are often delicate and thin, and usually colored, shaped or stained to encourage texture.
Although similar in shape to leaves, they are more comparable to sticks because they form at about the same time as each other, but their subsequent growth is delayed. If the corollas fuse together it is called symphysis
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The androecium, or stamens, is the polar circle that produces the male part Stamens usually consist of an anther, four votive sacs arranged in two theca, connected by a filament or stamen.
The anther contains microsporocytes which, after meiosis, become the male gametophyte. Although they show the greatest variation among floral organs, the androecium is usually limited to only one whorl and only rarely two whorls.
Stamens vary in number, size, shape, orientation, and point of attachment to the flower. The gynoecium, or carpel, is the female part of the flower Each carpel consists of a stigma, which receives a pole, a style, which acts as a stalk, and contains an ovary, which contains the ovules.
The carpels can be from one to many whorls and are joined together and are often described as pistils Inside the ovary, ovulation is blocked by a piece of tissue called a plaque
The four main parts of the flower are usually defined by their location in the receptacle rather than their function Many flowers are missing parts, or parts may be converted to other functions, or other parts may appear normal
In some families, such as the Ranunculaceae, the inflorescence is greatly reduced and in many species the sepals are variegated and petal-like. Other flowers have modified stamens that resemble petals The double flowers of peonies and roses are mainly graves
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Many flowers have richness When the perianth is cut from any point along the central axis to produce a symmetrical half, the flower is said to be actinomorphic or regular.
This is an example of radial symmetry When flowers bisect and produce only one line that produces the fertile half, the flower is said to be irregular or zygomorphic. If, in rare cases, they have no symmetry at all, they are called asymmetric
Flowers can be directly attached to the plant at their base (sessile – supporting stalk or stem very few or absent).
The stem or branch representing the flower, or inflorescence, is called the peduncle If a plant supports more than one flower, the branches connecting each flower to the main axis are called pedicels.
In most species, individual flowers have both pistils and pistils These flowers are described by botanists as perfect, bisexual or hermaphrodite.
However, in some plant species, flowers are incomplete or separate: they have only male (pistil) or female (pistil) parts. In the latter case, if an individual plant is female or male, the species is considered dioecious However, species where male and female flowers occur on the same plant are called monoecious
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Many flowers contain nectar, which are glands that produce a sweet liquid that is used to attract pollinators. They do not consider themselves an authority
A calla lily is not a single flower It is actually a cluster of small flowers pressed together on a thick stalk that is surrounded by a large petaloid branch.
In species that have more than one flower on a single axis, the collective cluster of flowers is called an inflorescence.
Some bouquets consist of many small flowers arranged like flowers A common example is most members of the large composite group (Asteraceae). A daisy or sunflower, for example, is not a flower, but a flower head – an inflorescence made up of several flowers (or flowers).
A flower formula is a way to represent the structure of a flower in a compact form using specific letters, numbers and symbols. It may represent a taxon, usually providing numbers of different organs or specific species
Flower formulas were developed in the early 19th century and their use has declined since then Prner et al. (2010) proposed an extension of the existing model to increase the descriptive capacity of the formulation.
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The format of flower formulas varies in different parts of the world, but they convey the same information
Flower pictures can also be expressed using flower pictures The use of schematic diagrams can replace lengthy descriptions or complex diagrams as a tool for understanding both flower structure and evolution.
Such images can show important features of the flower, including the relative positions of different organs, cross-section fusion and symmetry, and structural details.
Flowers develop from a specific apical meristem into a modified shoot or axis (specific meaning the axis grows to a specific size). It has compressed internodes, supporting structures that are defined as highly modified leaves in classical plant morphology.
Detailed developmental studies, however, have shown that the stem often begins more or less as a modified stem (flower) which in some cases may resemble a branch.
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Considering all the diversity in the development of the androecium of flowering plants, we find a continuum between modified leaves (phyllome), modified branches (coelom) and modified branches (shoots).
Flowering is a major stage change that a plant goes through in a life cycle Infection must occur at a time that is favorable for fertilization and seed formation, thus ensuring maximum reproductive success.
To meet these needs, plants are able to interpret important biological and viral cues such as changes in plant hormone levels and seasonal changes in temperature and photosynthesis.
Many perennials and most biennials require spring tilling to bloom The molecular interpretation of these signals is through the transmission of a complex signal called FLORIG, in which constance, full locus C and full locus T FLORIG are produced in leaves under reproductively favorable conditions.
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