Basic about Flower - Floral formula

A floral formula is a way to represent the structure of a flower using specific letters, numbers, and symbols. Typically, a general formula will be used to represent the flower structure of a plant family rather than a particular species. The following representations are used:

Ca = calyx (sepal whorl; e.g. Ca⁵ = 5 sepals)
Co = corolla (petal whorl; e.g., Co^3(x) = petals some multiple of three )
Z = add if zygomorphic (e.g., CoZ⁶ = zygomorphic with 6 petals)
A = androecium (whorl of stamens; e.g., A^∞ = many stamens)
G = gynoecium (carpel or carpels; e.g., G¹ = monocarpous)

x: to represent a "variable number"
∞: to represent "many"

A floral formula would appear something like this:

Ca⁵Co⁵A^{10 - ∞}G¹

Basic about Flower - Ovary Position

A fruit is the ripened ovary or ovaries. The fruits of a plant are responsible for dispersing the seeds that contain the embryo and protecting the seeds as well. In many occasions, the fruit incorporates some surrounding tissues, or is dispersed with some non-fruit tissues.

Type of fruit also determined by the position of ovary within a flower.

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I. A superior ovary is an ovary attached to the receptacle above the attachment of other floral parts. A flower with this arrangement called hypogynous.

Examples are drupes and true berries.

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II. A half-inferior ovary is called perigynous, is surrounded by receptacle, has nearly equal portions of ovary above and below the insertion point.

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III. An inferior ovary lies below the attachment of other floral parts. It is also called epigynous.

Examples are orchids, Fuchsia, Asteraceae, Cucurbitaceae, banana, some pomes type fruits