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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 ...
The filaments, separated from each other, are inserted in the corolla tube. The anthers are joined forming a tube around the style in which the pollen is released, and the style then grows through this tube, pushing out or taking up the pollen (with variably developed hairs) and presenting it to floral visitors, after which the stigmas become ...
To make something interbreed; the act of hybridization. cruciform Cross-shaped. crustaceous Hard, thin and brittle. crustose Forming a closely applied surface layer or crust. cryptogam Any of the "lower plants" which produce spores and do not have stamen s, ovaries, or seeds; literally, plants whose sexual reproductive organs are not conspicuous.
The male stamen is inside the tube-shaped corolla of the disk floret. It has five anthers, five filaments, and produces pollen. The anthers and filaments are readily visible as separate entities in non-Asteraceae species. Here, they are fused together to form a cylinder, or tube, with their pollen on the inside only.
Microspores are produced by meiosis inside anthers and megaspores are produced inside ovules that are within an ovary. Anthers typically consist of four microsporangia and an ovule is an integumented megasporangium. Both types of spores develop into gametophytes inside sporangia. As with all heterosporous plants, the gametophytes also develop ...
Such organs are described as connate or adnate, respectively. When like organs that are usually well separated are placed next to each other, but not actually connected, they are described as connivent (that is the case for anthers in several genera, such as Solanum). The stamens of Hibiscus (like many Malvaceae) are synfilamentous.
Most anthers are formed on the apex of a filament. 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.
In the middle of the pistil is the style, which is the tube down which pollen travels to the ovary. The ovary lies at the bottom of the blossom, and each hibiscus has only one superior ovary. The male part of the flower, called the stamen, consists of stem-like filaments and anthers. Each filament ends with the pollen-producing anther.