Flower of Magnolia × wieseneri showing the many pistils making up the gynoecium in the middle of the flowerHippeastrum flowers showing stamens, style and stigmaHippeastrum stigmas and styleMoss plants with gynoecia, clusters of archegonia at the apex of each shoot.
Gynoecium (/ɡaɪˈniːsi.əm,dʒɪˈniːʃi.əm/; from Ancient Greek γυνή (gunḗ) 'woman, female', and οἶκος (oîkos) 'house'; pl.: gynoecia) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) pistils and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the "female" portion of the flower, although rather than directly producing female gametes (i.e. egg cells), the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells.
The term gynoecium is also used by botanists to refer to a cluster of archegonia and any associated modified leaves or stems present on a gametophyte shoot in mosses, liverworts, and hornworts. The corresponding terms for the male parts of those plants are clusters of antheridia within the androecium. Flowers that bear a gynoecium but no stamens are called pistillate or carpellate. Flowers lacking a gynoecium are called staminate.
The gynoecium is often referred to as female because it gives rise to female (egg-producing) gametophytes; however, strictly speaking sporophytes do not have a sex, only gametophytes do.[1] Gynoecium development and arrangement is important in systematic research and identification of angiosperms, but can be the most challenging of the floral parts to interpret.[2]
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Gynoecium (/ɡaɪˈniːsi.əm, dʒɪˈniːʃi.əm/; from Ancient Greek γυνή (gunḗ) 'woman, female', and οἶκος (oîkos) 'house'; pl.: gynoecia) is most commonly used...
missing, that is, the flowers have only the fertile whorls (androecium and gynoecium) and are called aperianthous, aclamyds or simply "naked" flowers. The...
of patterns, some of them highly complex. It generally surrounds the gynoecium and is surrounded by the perianth. A few members of the family Triuridaceae...
results from the fertilizing and maturing of one or more flowers. The gynoecium, which contains the stigma-style-ovary system, is centered in the flower-head...
plants), the term locule usually refers to a chamber within an ovary (gynoecium or carpel) of the flower and fruits. Depending on the number of locules...
Sida acuta, the common wireweed, is a species of flowering plant in the mallow family, Malvaceae. It is believed to have originated in Central America...
lowest node and working upwards) are the calyx, corolla, androecium, and gynoecium. Together the calyx and corolla make up the non-reproductive part of the...
A floral diagram is a graphic representation of the structure of a flower. It shows the number of floral organs, their arrangement and fusion. Different...
respectively) an androecium with five stamens and two carpels forming a gynoecium with a superior ovary (they are therefore referred to as pentamers and...
December 2023. consist of several separate carpels of one apocarpous gynoecium (e.g., raspberries where each unit is a single carpel Gina Fernandez;...
Contrast gynoecium. Abbreviated A; e.g. A 3+3 indicates six stamens in two whorls. androgynophore A stalk bearing both the androecium and gynoecium of a flower...
may be called the "female" parts of a flower and collectively form the gynoecium. Each carpel in Ranunculus species is an achene that produces one ovule...
strongly fragrant in some species. The gynoecium has three connate carpels with the nectary on top of the gynoecium. Some species also have a fringe of large...
may develop on or in the perianth, receptacle, androecium (stamens), or gynoecium. In some flowers nectar may be produced on nectariferous disks. Disks...
the carpels. These exude nectar from small pores on the surface of the gynoecium. Nectaries may also vary in color, number, and symmetry. Nectaries can...
innermost): subtending bract and stem axis; calyx forming a pappus; fused corolla; stamens fused to corolla; gynoecium with two carpels and one locule...
is located inside the portion of the flower called the gynoecium. The ovary of the gynoecium produces one or more ovules and ultimately becomes the fruit...
lost stamen; monosymmetric gynoecium of 1 carpel with superior ovary; marginal placentation with 8–10 ovules per gynoecium. ✶ P3+3 A3+3 G(3) Floral diagram...
two locules of the anthers that open longitudinally along slits. The gynoecium contains three to five connate carpels, one style, and one stigma that...
Ceroxyloideae has small to medium-sized flowers, spirally arranged, with a gynoecium of three joined carpels. Subfamily Coryphoideae are the second-largest...
diameter. Flowers are self pollinating, containing both androecium and gynoecium. Since they contain both structures, this plant is able to self-pollinate...
as a parasol shading the gynoecium at times of maximum solar radiation, and not allowing the rays to impinge on the gynoecium. In the case of sunflowers...
The reproductive parts consist of both male (androecium) and female (gynoecium) parts (hermaphrodite). The androecium has six yellow-brown stamens that...
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