Ovary (plants)
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it might good to have other examples, but the formatting was broken: [[WP:UNDO|Undid]] revision 224604457 by [[Special:Contributions/123.176.45.14|123.176.45.14]] ([[User talk:123.176.45.14|talk]])
[[Image:Femalesquash3747.JPG|right|300px|thumb|Longitudinal section of female flower of squash showing ovary, ovules, pistil, and petals]]
In the [[flowering plant]]s, an '''ovary''' is a part of the female reproductive organ of the flower or [[gynoecium]]. Specifically, it is the part of the [[carpel]] which holds the [[ovule]](s) and is located above or below or at the point of connection with the base of the [[petals]] and [[sepals]]. In this picture of a [[zucchini]] the petals and sepals are above the ovary and such a flower is said to have an inferior ovary; also referred to as epigynous. 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 individual [[pollen grain]], to grow into one individual ovule. Some wind pollinated flowers have much reduced and modified ovaries. The carpel together with all the female components including ovules, placental tissue, style and stigma are called [[gynoecium]]. The carpel is considered to be a modified leaf. A pea shell is a good example of a carpel and shows the genetic and morphological relationship to a leaf.
== Fruits ==
A [[fruit]] is the ripened ovary—together with [[seed]]s—of a flowering plant. In many species, the fruit incorporates the ripened ovary and surrounding tissues. The fruits of a plant are responsible for dispersing the seeds that contain the embryo and protecting the seeds as well.
== Positions ==
[[image:Ovary position.svg|300px|right|thumb|Ovary insertion: I superior II half-inferior III inferior. ''a'' androecium ''g'' gynoecium ''p'' petals ''s'' sepals ''r'' receptacle. The insertion point is where ''a'', ''p'', and ''s'' converge.]]
The terminology of the positions of ovaries is determined by the '''insertion point''', where the other floral parts ([[perianth]] and [[androecium]]) come together and attach to the surface of the ovary. <ref>{{cite journal | author=Soltis et al. | year=2003 | title=Evolution of Epigyny | journal=International Journal of Plant Sciences | volume=164 | pages=S251–S264 | doi=10.1086/376876}}</ref> If the ovary is situated above the insertion point, it is superior; if below, inferior.
=== Superior ovary ===
A '''superior ovary''' is an ovary attached to the receptacle above the attachment of other floral parts. A superior ovary is found in types of fleshy fruits such as [[berry|true berries]], [[drupe]]s, etc. A flower with this arrangement is described as ''hypogynous''. An example is ''[[Hypericum calycinum]]''.
An ovary becomes superior during anthesis (flower formation) when the upper portion of the ovary grows more than the lower part.
=== Inferior ovary ===<!-- This section is linked from [[Cucurbitaceae]] -->
{{seealso|False berry}}
An '''inferior ovary''' lies below the attachment of other floral parts. [[Pome]] is a type of fleshy fruit, that may be cited as an example. The flower of ''[[Fuchsia]]'' has an inferior ovary.
Such flowers are termed ''epigynous''.
=== Half-inferior ovary ===
A '''half-inferior ovary''' (also known as “half-superior”, “subinferior,” or “partially inferior,”) is embedded or surrounded by the receptacle. <ref>{{cite journal | author=Soltis & Hufford | year=2002 | title=Ovary Position Diversity in Saxifragaceae | journal=International Journal of Plant Sciences | volume=163 | pages=277–293 | doi=10.1086/324528}}</ref>
Such flowers are termed ''perigynous'' or ''half-epigynous''. In some classifications, half-inferior ovaries are not recognized and are instead grouped with either the superior or inferior ovaries.
More specifically, a half-inferior ovary has nearly equal portions of ovary above and below the insertion point. Other varying degrees of inferiority can be described by other fractions. For instance, a "one-fifth inferior ovary" has approximately one fifth of its length under the insertion point. Likewise, only one quarter portion of a "three-quarters inferior ovary" is above the insertion.
==See Also==
* [[Fruit Anatomy]]
==References==
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[[Category:Plant morphology]]
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