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A mature flower. In this example, the perianth is separated into a calyx (sepals) and corolla (petals) The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when called a perigone.
Either a minor calyx in the kidney, a conglomeration of two or three minor calyces to form a major calyx, or the Calyx of Held, a particularly large synapse in the mammalian auditory central nervous system, named by H. Held in his 1893 article Die centrale Gehörleitung, [3] due to its flower-petal-like shape.
Antipetalous – when the stamens number the same as, and are arranged opposite, the corolla segments; e.g. Primula. Antisepalouse – when the stamens number the same as, and are arranged opposite, the calyx segments. Connective – the part of the stamen joining the anther cells. Tepal –
Diagram showing the parts of a mature flower. In this example the perianth is separated into a calyx (sepals) and corolla (petals) A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals.
The flowers have five calyx segments, of which two are elongated into wings, while the other three are shorter and triangular. The sepals of the calyx are green and red-tinged, especially the two that elongate into the wings of the fruit. [5] The calyx tube is distinctly ribbed. The flowers are about 3.5 to 5 cm long, with pinkish and white petals.
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On the flower, the calyx is rounded below, 5 to 9 mm long, and 4.5 to 7 mm wide, with appressed segments. Calyx segments are triangular- lanceolate , acute, and 4 to 7 mm long, 2.5 to 4 mm wide. Corolla is white, 8 to 11 mm long, 4 to 5 mm thick, with the petals connate 2 to 3 mm and erect with the tips slightly outcurved, elliptic to oblong ...
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