A flower is a shortened shoot of a plant with modified leaves. This part is intended primarily for reproduction. The shape of the flowers of plants can be very different.
All existing decorative cultures can be divided into three large groups:
All these varieties are represented by a huge number of plants of various genera and families. The type of flower, by the way, is an important criterion for correct taxonomy.
The first type of colors in biology is calledactinomorphic. All parts of the coronas in these plants are absolutely symmetrical. The actinomorphic flower is characterized primarily by the fact that no less than two planes can be drawn through its axis. Look such plants, of course, very attractive. However, it is believed that for pollination by insects they are not well adapted.
The correct flower is actinomorphic, in addition to everythingother, may have a different number of petals. Sometimes they are arranged in one row, sometimes in several. Actually, the actinomorphic coronals differ in such features as:
An actinomorphic flower can be:
Plants with corollas of this variety are found in nature quite often. Biologists call these flowers zygomorphic. Through the center of the asymmetric corolla, only one plane can be drawn.
The corollas of this group have a special shape thatis often a morphological feature of the species (and sometimes even of the family). The petals they have most often fused. In nature there are zygomorphic flowers:
What is the actinomorphic and zygomorphic flower, wefound out. Asymmetric corners are characterized, first of all, by the fact that no plane of symmetry can be drawn through their center. There are similar plants in the wild not so often. The vast majority of ornamental crops have symmetrical or asymmetrical corolla.
The fact that symmetrical coronals are poorly pollinatedinsects, according to biologists, is a sign of their low organization. But anyway, in nature, most often there are plants with actinomorphic flowers. To this group belong all well-known meadow, field and forest flowers, including:
In the gardens, the vast majority of ornamental herbaceous and shrubby cultures also have symmetrical corollas. An actinomorphic flower is, for example, peonies, daffodils, sunflowers, lilies, mallow.
Of shrubby cultures, the same group includes rosehips, lilacs, spirea. Actinomorphs are also the flowers of the garden grapes.
We found out which plants are the correct flowers,actinomorphic. This group in nature is the most common. Zygomorphic plants in the fields and in forests are more rare. Examples of such crops are:
Decorative qualities of the flowers of this group are usuallynot too high. Therefore, to decorate streets and yards, as well as to compose bouquets, they are grown quite rarely. But sometimes you can see such flowers in gardens and flower beds, of course. For example, a good decoration of the site can be a vyazel (garden mouse peas). This culture is often used in landscape design as ground cover.
Plants of this group, as already mentioned, and innature, and in gardens are rare. Their coronets look pretty attractive and unusual, and therefore can be used in landscape design. Very bright representatives of a group of plants with asymmetric colors are, for example, well-known to all cannes. Also in landscape design, horse chestnut is often used.
Of course, plants of this group can also occur in the wild. Asymmetric flowers, for example, have a medicinal plant valerian.