Inflorescence is a group of flowers present on a common stalk. Inflorescence may be classified into 3 types based on position. Inflorescence classified into racemose, cymose, mixed and special type based on the flower arrangement and branching of axis. Flower is a modified shoot and meant for sexual reproduction. Flower has various parts to enhance reproduction. Flower can be explained by its sex, symmetry and arrangement of whorls, merosity. Calyx is outermost whorl of flower and many types. Corolla is second whorl of flower and used for pollination. Corolla may be united or free and has various forms in different flowers. Aestivation is arrangement of sepals, petals in bud condition and is of many types. Androecium is the male part of flower and made up of stamens. Stamens contain filament,anther and connective.
Gynoecium is female part of
flower. Ovary, style and stigma are parts of pistil. According to number of
carpels it is divided into monocarpellary, bicarpellary etc. It may be
apocarpous or syncarpous. Locule number may be one to many. The ovary is
superior or inferior or semi inferior. Mode of distribution of placenta inside
the ovary is placentation. Construction of floral diagram and floral formula
for given flower with some examples.
Fruits are the products of pollination and
fertilization. Fruit developed from single ovary of flower is called simple fruit. Simple fruits are two types based on the fruit wall as simple fleshy and simple dry. An intermediate
between dehiscent and indehiscent fruit is called schizocarpic fruit. The
simple fruits could be fleshy or dry which could again be dehiscent or
indehiscent. Fruits that are developed from multicarpellary, apocarpus pistil
is called aggregate. Multiple or composite fruit develops from the flowers of
the complete inflorescence. Seed is a ripened ovule which contains the embryo
or the miniature of plant body. Seeds with one cotyledon are monocotyledonous
and with two cotyledons are dicotyledonous.
Prepare a diet chart to provide balanced diet to an adolescent (a school going child) which includes food items (fruits, vegetable and seeds) which are non - expensive and are commonly available.