flower is a modified short shoots, which is adapted to form spores, the gametes (sex cells), and to cross-pollination.After this process produces seeds and fruit.Flowers, whose structure is quite simple, in biology very interesting object of study.
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From the perspective of a scientific approach, each plant - is a system that exists by its own rules.Flowers have the following structure.Stem of them - a combination of flower stalk and receptacle on which the leaves (they are scientifically called tsvetolistiki).By tsvetolistikam are sepals, stamens and pistils, and petals.Most often, these components are arranged around the center of several rows.If you have plants and stamens, and pistils, they are called bisexual, or hermaphrodite.We are dioecious or stamens (in this case the male flower) or a pistil (talking about the female variety).
Perianth - this is another component that has flowers.The structure of it is such that it acts as a kind of protector and main plant attracts pollinators.Perianth may be of different colors (in this case it is a double), and can be painted all one color - in this case we speak of a simple variety.Stamen, which is the male part of the plant includes a thread, and staminate bellow.In the heart of the flower is the pistil (which, incidentally, may be several).It includes the ovary, style and stigma.Features
- pestle;
- stamens;
- corolla;
- petals;
- epicalyx;
- receptacle;
- nodes;
- interstices;
- peduncle.
flowers whose structure mogzhet vary, will vary depending on the number of parts and their location and shape.For example, plants having both stamen and pistil called bisexual.If you have or stamen or pistil, the flower is scientifically known as gay.The plant may consist of several flowers, which are collected in inflorescence, and may be single.Of course, if it will be faster inflorescences pollinated, while the flowers are less damaged by the impact of adverse environmental factors.The inflorescences, in turn, can also be of two types: simple (the flower is located on the main axis) or complex (comprising several orders of flowers).
Biology flower structure defines as a complex machine, which involves at once all its components.For example, when the mature pollen, anthers begin to burst, causing the pollen to the stigma of the pistil is.It is here that pollination.By the way, it can be cross that occurs most often, but sometimes it happens and pollination.Feature cross method is that the pollen carried by the wind, water, insects, birds, and so on.
