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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.
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 are erect; the salverform perianth is 7.3 to 16 cm (2.9 to 6.3 in) long, and is white, sometimes tinged or veined with pink. The perianth tube is 7 to 13 cm (2.8 to 5.1 in), and is primarily white, sometimes with pale green proximally. The tepals are rarely reflexed. The stamens are fasciculate, and appear equal.
In a mature flower, the perianth consists of a calyx and the corolla (petals) it supports. Petals are modified leaves that form an inner whorl surrounding the reproductive parts of flowers. They are often brightly coloured or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the corolla.
The flowers, which are usually conspicuous and white or yellow, sometimes both or rarely green, consist of a perianth of three parts. Closest to the stem (proximal) is a floral tube above the ovary , then an outer ring composed of six tepals (undifferentiated sepals and petals), and a central disc to conical shaped corona .
(of a perianth) Lacking both stamen s and pistil, i.e. a flower with neither androecium nor gynoecium. centrifixed Of a two-branched organ attached by its center, e.g. a hair or anther. ceraceous Having a waxy appearance, color, or texture, e.g. flowers of many species of Ceropegia, and the waxy fruit of some species of Myrica. cernuous
The bract subtending the individual flower is lance-shaped with a pointy tip, about 1¾ cm (0.7 in) long and ½ cm (0.2 in) wide, densely woolly at the base, papery with powdery hairs near the tip on the outer surface. The 4-merous perianth is 4–5 cm (1.6–2.0 in) long and pale orange in colour. In the lower part, where the lobes remain ...
The perianth consists of 5 free sepals and 5 joined petals, which are fused with androecium. The flower is bisexual, it contains 5 stamens , the pistil is fused of five carpels, and the ovary is inferior.