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The floral diagram is a graphic representation of the arrangement of the floral parts and the arrangement of the different whorls, in a cross section of the flower. Each whorl is represented, by convention, with a concentric circumference around the gynoecium, indicated by a cut at the level of the ovary.
The corolla: zero or more whorls of petals above the calyx; The androecium: zero or more whorls of stamens, each comprising a filament and an anther; The gynoecium: zero or more whorls of carpels, each consisting of an ovary, a style, and a stigma; A flower lacking any of these floral structures is said to be incomplete or imperfect. [3]
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 parts of the flower are represented by their respective symbols. Floral diagrams are useful for flower identification or can help in understanding angiosperm evolution.
Print/export Download as PDF; ... Diagram of flower parts. ... is the female part of the flower found on the innermost whorl.
Whorls of the same organ are separated by "+". Organ counts within a whorl can be separated by ":", for example when part of the whorl is morphologically different. A range can be given if the number is variable, e.g. when the formula summarizes a taxon. K 3+3 – a calyx with six free sepals, arranged as two separate whorls; A∞ – many stamens
Merosity (from the greek "méros," which means "having parts") refers to the number of component parts in a distinct whorl of a plant structure. [1] The term is most commonly used in the context of a flower where it refers to the number of sepals in a whorl of the calyx, the number of petals in a whorl of the corolla, the number of stamens in a whorl of the androecium, or the number of carpels ...
Botanical whorls: sepals, petals, leaves, or branches radiating from a single point (photo of flower of Friesodielsia desmoides, family Annonaceae, juxtaposed with diagram of axial cross-section) Mollusc whorls : Each complete 360° turn in the spiral growth of the shell of the mollusc Anisus septemgyratus , family Planorbidae .
Collective term for the sepal s of one flower; the outer whorl of a flower, usually green. Compare corolla. calyx tube A tube formed by the fusion of the sepals (calyx), at least at the base. cambium Tissue layer that provides partially undifferentiated cells for plant growth. campanulate Bell-shaped. camptodromous