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Stamen is the Latin word meaning "thread" (originally thread of the warp, in weaving). [8]Filament derives from classical Latin filum, meaning "thread" [8]; Anther derives from French anthère, [9] from classical Latin anthera, meaning "medicine extracted from the flower" [10] [11] in turn from Ancient Greek ἀνθηρά (anthērá), [9] [11] feminine of ἀνθηρός (anthērós) meaning ...
Schematic cross section of an anther. 1: Filament 2: Theca 3: Connective 4: Pollen sac (also known as sporangium) In botany, the connective is the portion of sterile tissue of the anther between and interconnecting the two thecae, [1] [2] which forms a body with them and holds them together.
An anther and its filament together form a typical (or filantherous) stamen, part of the male floral organ. The typical anther is bilocular, i.e. it consists of two thecae. Each theca contains two microsporangia, also known as pollen sacs. The microsporangia produce the microspores, which for seed plants are known as pollen grains.
anther The pollen-bearing part of a stamen. antheridium in bryophytes, a specialized gametophytic organ that produces the male gametes. antheridiophore In liverworts of the order Marchantiales, a male gametophore, a specialized, stalked structure that bears the antheridia. antherode A sterile anther of a staminode. anthesis 1.
The pollen is released from the anther within the flower or the pollen on the anther grows a tube down the style to the ovules. It is a type of sexual breeding, in contrast to asexual systems such as apomixis. Some cleistogamous flowers never open, in contrast to chasmogamous flowers that open and are then pollinated.
If the anther is cut perpendicular to its axis, it is observed that each anther contains one or two pollen sacs extending along its entire length. [18] [14] After the maturation of the pollen grains, dehiscence or opening of the anther occurs to let the pollen out. The tissue responsible is called endothecium.
When pollen from the anther of a flower is ... to the end of long thin filaments, or pollen forms around a ... function of flowers is the promotion of cross ...
In angiosperms, a very young anther (the part of the stamen that contains the pollen) consists of actively dividing meristematic cells surrounded by a layer of epidermis. It then becomes two- lobed . Each anther lobe develops two pollen sacs, so each anther has four pollen sacs.