The number and length of stamens vary in different species. It produces the pollen. New York, NY 10024-5102 Stamen specification and anther development involve a number of extraordinary events such as meristem transition, cell division and differentiation, cell-to-cell communication, etc., which need the cooperative interaction of sporophytic and gametophytic genes [22]. The stamen, and its fertile pollen-bearing part, and anther, have received relatively little scientific attention, in spite of their fundamental role in the reproductive cycle of flowering plants, and their importance in interpreting plant evolution. The pollen grains are actually haploid male gametophytes. Stamen and microsporangium Structure of Stamen and Microsporangium Stamens - The Male Reproductive Structures of a Flower Male Reproductive Part - Androecium. 1. Receptacle: The part of a flower stalk where the parts of the flower are attached. ; Filament derives from classical Latin filum, meaning "thread"; Anther derives from French anthère, from classical Latin anthera, meaning "medicine extracted from the flower" in turn from Ancient Greek ἀνθηρά, feminine of ἀνθηρός, "flowery", from ἄνθος, "flower" Key Areas Covered. The stamens developed during the autumn until they reached a stage at which all anther layers and sporogenous tissue were well differentiated. Usually, the anther contains four sac-like structures called microsporangia or pollen sacs, but sometimes it may have only one lobe and two microsporangia. 2.3 A). Español: Estambre y antera. Attached to the stamen is the anther, the anthers job is to which carry’s the pollen and a stigma which receives the pollen at its tip. It is composed of anther and filament. The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.Collectively the stamens form the androecium.. Morphology and terminology. Stigma: The part of the pistil where pollen germinates. Note the slightly curved stigma with white towards the tip. The stamens are the individual parts of the androecium or the male reproductive part of the flower. A filament of a stamen emerges out from the thalamus or peduncle and gives rise to a knob-like anther. Part of the Biodiversity Counts Curriculum Collection. The ovary often supports a long style, topped by a stigma. Each microsporangium contains pollen mother cells. An anther is a part of the stamen, which produces and bears pollen grains. Stamen and anther. This is also called as the androecium. Structure of Pollen … Other articles where Anther is discussed: angiosperm: The androecium: …terminal saclike structures (microsporangia) called anthers. Structure of Stamen, Anther, Pollen Sac and Pollen Grain in Plants! The stamen is comprised of an anther, which is connected to a filament (pictured below). The stamen is made up of two parts: Filament is the hair-like stalk; Anther is at the end of the stalk and holds the pollen; Sepal. The stamen has two parts: anther and stalk. Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle area of the anther. The anther is held by the filament which is a long structure. Flowers of wheat at anthesis showing stamens. Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud. English: Stamens (the pollen-producing part of the flower) and anthers (the top part of the stamen where the pollen is produced) Deutsch: Staubblatt und Staubbeutel. There are generally two pairs of spore-containing sacs (microsporangia) in a young stamen;… Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle area of the anther. The ovary often supports a long style, topped by a stigma. A stamen typically consists of a stalk called the filament and an anther which contains microsporangia. American Museum of Natural History Pistil: The ovule producing part of a flower. Within the anther reside the microsporangia, which will ultimately develop into pollen grains. Anther: The part of the stamen where pollen is produced. The stamen is homologous to the microsporophyll. These undergo meiosis, and produce pollen grains, which contain the male gametes . Learn with Videos. Learn more about stamen morphology and features. The Stamen is the male reproductive organ made up of two parts, the stalk-like bit called the filament, and the bit on top which is the anther 7 min. Viscin threads occur with the tetrads in the three rhododendroid species. This page was last edited on 6 October 2018, at 14:45. Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle area of the anther. Microsporogenesis. The stamen is an Directions, ticket info, and visitor tips. The number, length and position of a stamen can vary within the different range of flowers.