The stigma is sticky since its function is to receive, retain and facilitate the movement of pollen for germination. Since the anther of a flower contains pollen grains it is grainy in texture and feels. The stigma on the other hand receives this pollen grain and the compatible ones reach the ovary allowing germination and reproduction. The anther contains, bears and produces pollen grains or pollens that are like the sperm of a flower for fertilization. The stigma, style and ovary together form the pistil and this is the composition of the gynoecium. The anther and filament together form the stamen, the individual part of androecium. The stigma lies on the top and is held by a tube called the style that connects to the ovary. The anther is at the top and held by a long tube called the filament.
The stigma of a flower can be long, slender, feathery or even globe-shaped depending on the type of species. The anther has an oval-shaped structure and can be of one lobe or two. The stigma is also located in the distal end of the pistil and it definitely plays an important role via its texture and shape to hold and transport the grain. The anther is connected to the distal end of the filament and is also the main attraction for the pollinators like insects and animals. The stigma is part of the female reproductive system, gynoecium in a flower. The anther is part of the male reproductive system, androecium in a flower. Anther and stigma are the male and female reproductive parts of a flower respectively. Let’s take a look at what the anther contains versus the stigma. In the case of plant reproduction via cross-pollination, that is the stigma receives the pollen from flowers of other plants via various means like insects and wind the stamen is usually bent away from the pistil.Īnther of a flower is often confused with stigma even though their functions in the flower serve different purposes. The plants that reproduce through self-pollination which is via the transfer of the pollen from the anther to the stigma of the pistil to reach the ovary of the same flower of the same plant has the stamen bent towards the pistil. The filament holding the anther is attached to the petal, and the nature of the stamen solely depends on the type of the plants and flowers. A filament of the stamen very diligently holds the anther on top and facilitates its functions. It also depicts the other parts very clearly for a clearer understanding and one can refer to when reading about anther.Īs understood from the above diagram, stamens are separated but all connected and collectively the stamens are called androecium. Anther meaning and role can be particularly understood better when you look at the diagram below that suggests the location of the anther. Anther of a flower and filament are the two parts of the stamen that surround the pistil. The ratio of the number of stamens is the same as that of the petals but sometimes it varies depending on varieties of flowers and their species. There are at least five to six stamens in a flower. The stamens are elongated filaments raised in the middle of the flower in a circular ring. The male part of the reproductive system of the flower is called Androecium that is individually segregated as the stamen. Based on the structure and shape of the anther lobe, it is categorized as bilobed, unilocular, linear, rounded, sagittate, appendiculate, reniform, etc. Anthers may be classified based on its lobe structure and type of attachment to the filament. Anthers show various morphological variations in different species of flowering plants. What are the Various Types of Anther in Flowering Plants?Īnthers are bilobed structures attached to the slender filament (that carry the pollen sac) of a stamen in a male flower. Only upon pollen production by the anther does the pollination commence.
The anther is solely responsible for producing and bearing pollen that serves the purpose of fertilization in flowering plants. The male structure stamen is composed of a filament that is a long tube with an oval-shaped pollen-producing structure attached to the top of it called the anther. The anther is attached to the part of a flower’s male reproductive system called the stamen. And the male reproductive part of the flower is called the stamen. The female reproductive part of a flower is the pistil, composed of stigma, style and ovary. To define anther, it is crucial to understand the reproductive parts of the flower.
Let’s start by learning the parts of a flower, pistil, stamen, receptacle, peduncle and sepal. In botany, it is as important to study the parts and functions of the flower as it is that of plants.
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