Question

How many types of flowers are there?

Answer 1

Hint: Flower is the reproductive structure that is found in the flowering plants. The biological function of a flower is to facilitate reproduction that is achieved either by cross or self- pollination. Plants are distinguished from each other on the basis of floral parts being present in them.

Complete answer-
Flower is a specialized condensed shoot of an angiosperm plant. It helps in sexual reproduction of the plants by progressive specialization of sporophylls. Flower develops in the axil of a small leaf-like structure called bracts. Only the lower internode is longer and forms the pedicel or stalk of the flower. It may bear two bracteoles.
A flower consists of essential and non- essential parts. Calyx and corolla are non - essential parts while gynoecium and androecium are the essential parts that help in the reproduction of the plants by forming seed. The calyx and corolla help in protection and attraction of insects. The four floral parts are borne on the tip of the floral axis called receptacle or thalamus.
The arrangement of these floral parts on the receptacle may be spiral or whorled or both types may also occur in the same flower. The spiral arrangement is found in family Cactaceae and the flower is called acyclic. Types of flower are:
BIMEROUS- Bimerous flowers are those flowers which have floral appendages (sepals and petals) in multiples of two.
TRIMEROUS- Flower with floral appendages in multiple of three.
COMPLETE- These flowers have all four types of floral organs.
INCOMPLETE- It lacks one or more of the floral parts.
BISEXUAL OR HERMAPHRODITE- These flower has both the essential floral organs.
IMPERFECT OR UNISEXUAL FLOWER- These flower has only one of the two essential floral organs.

Note:
The principal purpose of a flower is the reproduction of the individual and the species. They are formed as a result of pollination. Normally, pollen is moved from one plant to another is called cross- pollination but in some it is able to self - pollinate.