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A theca is two microspoorangia. The gynoecium (women's house) is the collective term for the female organs (carpels). A carpel is a modified megasporophyll consisting of two or more ovules, which develop conduplicatively (folded along the line). The carpels may be single, or collected together, to form an ovary, and contain the ovules.
The seam or face at which two carpel s adhere. See also fissure and suture. community An ecological assemblage of plants that characteristically occur together. compound Composed of several parts, e.g. a leaf composed of multiple leaflet s, a gynoecium composed of multiple carpel s, or an inflorescence made up of multiple smaller inflorescences.
Each carpel has a single placenta corresponding to the weld zone of the carpel leaf. Parietal placentation: occurs in the gynoecium formed by two or more carpels welded by their edges forming a single cavity in the ovary, so that each placenta corresponds to the edges of two contiguous carpel leaves.
In the flowering plants, the gynoecium develops in the central region of the flower as a carpel or in groups of fused carpels. [4] After fertilization, the gynoecium develops into a fruit that provides protection and nutrition for the developing seeds, and often aids in their dispersal. [5] The gynoecium has several specialized tissues. [6]
Close-up of a Schlumbergera flower, showing part of the gynoecium (specifically the stigma and part of the style) and the stamens that surround it. Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction.
The pistil may be made up of one carpel or of several fused carpels (e.g. dicarpel or tricarpel), and therefore the ovary can contain part of one carpel or parts of several fused carpels. Above the ovary is the style and the stigma, which is where the pollen lands and germinates to grow down through the style to the ovary, and, for each ...
The difference in size and proportion between some breeds are as great as those between any wild genera, but all dogs are clearly members of the same species. [5] In 2010, a study of dog skull shape compared to extant carnivorans proposed that "The greatest shape distances between dog breeds clearly surpass the maximum divergence between ...
In some capsules, the split occurs between carpels, and in others each carpel splits open. Circumscissile capsules ( pyxide , pyxis , pyxidium or lid capsule ) have a transverse, rather than longitudinal, dehiscence line, so that the upper part of the capsule dehisces, usually forming a terminal lid ( operculum ) that opens (see illustration).