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Most flowers are actinomorphic ("star shaped", "radial"), meaning they can be divided into three or more identical sectors which are related to each other by rotation about the center of the flower. Typically, each sector might contain one tepal or one petal and one sepal and so on.
Diagram of flower parts. In botany, floral morphology is the study of the diversity of forms and structures presented by the flower, which, by definition, is a branch of limited growth that bears the modified leaves responsible for reproduction and protection of the gametes, called floral pieces.
Crinum stuhlmannii infructescences Detail of Crinum × amabile flower with stamens inserted at the throat of the perianth tube Germinating Crinum seed . The bisexual, [5] [3] sessile or pedicellate, [5] [4] zygomorphic or actinomorphic flowers [4] are borne one umbellate or solitary inflorescences [3] [4] with solid scapes.
A foxglove with a peloric flower. (Digitalis purpurea 'monstrosa')A peloric foxglove (Digitalis purpurea) flowerPelorism is the term, said to be first used by Charles Darwin, for the formation of 'peloric flowers' [1] which botanically is the abnormal production of radially symmetrical (actinomorphic) flowers in a species that usually produces bilaterally symmetrical (zygomorphic) flowers. [2]
Flowers actinomorphic and hermaphrodite with 6 undifferentiated tepals in two whorls of three, the same number and arrangement of stamens, and a superior ovary with 3 fused carpels. Individual species and genera may have more or less derived formulas.
When the perianth is bisected through the central axis from any point and symmetrical halves are produced, the flower is said to be actinomorphic or regular. This is an example of radial symmetry. When flowers are bisected and produce only one line that produces symmetrical halves, the flower is said to be irregular or zygomorphic. If, in rare ...
The tulip's flowers are usually large and are actinomorphic (radially symmetric) and hermaphrodite (contain both male and female characteristics), generally erect, or more rarely pendulous, and are arranged more usually as a single terminal flower, or when pluriflor as two to three (e.g. Tulipa turkestanica), but up to four, flowers on the end ...
Flowers have radial symmetry (actinomorphic), [1] and are borne in heads that are cymes or racemes, or are solitary in axils. [6] They are perfect (bisexual), with a synsepalous, five-lobed calyx united into a tube at the base. [1] [6] Inflorescences are terminal or axillary. Five petals are united into a tube with four or five epipetalous ...