Fflowerr

19/05/2022

04/04/2022

04/04/2022

04/04/2022

The calyx consists of sepals and forms the outer circle of the perianth. The main function of the sepals is to protect the developing parts of the flower before it blooms. Sometimes the corolla is completely absent, or greatly reduced, and the sepals take on a petal-like shape and are brightly colored (for example, in some buttercups). Sepals can be isolated from each other or grow together.

04/04/2022

Perianth

Inflorescence of brilliant rudbeckia
The perianth is the sterile part of the flower that protects the more delicate stamens and pistils. Perianth elements are called tepals, or perianth segments. In a simple perianth, all leaflets are the same; in the double, they are differentiated. The green tepals of the double perianth form a calyx and are called sepals, the colored tepals of the double perianth form a corolla and are called petals.

04/04/2022

In some plants, as a result of the fusion of the receptacle, the lower parts of the integument and the androecium, a special structure is formed - hypanthium. The form of hypanthium can be varied and sometimes participate in the formation of the fetus (cynarrhodia - rosehip, apple). Hypanthium is typical for representatives of the rose, gooseberry, saxifrage, and legume families.

04/04/2022

On the pedicel there are also two (in dicotyledonous) and one (in monocotyledonous) small preleaves - bracts, which may often be absent. The upper expanded part of the pedicel is called the receptacle, on which all the organs of the flower are located. The receptacle can have different sizes and shapes - flat (peony), convex (strawberry, raspberry), concave (almond), elongated (magnolia).

04/04/2022

flower structure

The main parts of a blossoming flower
A flower consists of a stem part (pedicel and receptacle), a leaf part (sepals, petals) and a generative part (stamens, pistil or pistils). The flower occupies an apical position, but at the same time it can be located both on the top of the main shoot and on the side. It is attached to the stem by means of a pedicel. If the pedicel is greatly shortened or absent, the flower is called sessile (plantain, verbena, clover).