Angiosperm

Subject: Biology

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Overview

Notes

Introduction to Angiosperm

Angiosperm are well developed and highly evolved group of plants in which there is seeds enclosed within the fruit. This note contains detail information of angiosperm along with its characters. Learn More

Root

Root is underground descending portion of the plants axis which is white or pale brown in color without nodes, internodes, leaves and buds. This note contains detail information about tap root and adventitious root system. Learn More

Modification in root

Sometimes in addition to the normal functions of absorption, conduction and anchorage roots may perform storage of food materials, mechanical support and vital functions and this is called modification of root. This note contains information about modification in tap root and adventitious root. Learn More

Stem

The stem is the main axis of the plant body arises from the plumule of an embryo. This note contains information about stem and its modification. Learn More

Leaf

Leaf is a lateral dissimilar appendage of a plant body which arises on the node of stem and bears axillary bud on its axil. . This note contains detail information about types and venation of a leaf. Learn More

Structural Variation in Angiospermic leaf

Leaf is a lateral dissimilar appendage of a plant body which arises on the node of stem and bears axillary bud on its axil. This note contains detail information about shape, apex, surface, margin, texture, phyllotaxy of leaf. Learn More

Types of leaves

Mainly there are two types of leaves they are; simple and compound leaf. This note contains detail information about types of leaf. Learn More

Inflorescence

The mode of arrangement of flowers on the floral axis is known as an inflorescence. This note contains detail information about inflorescence and its types. Learn More

Flower

Flower is the reproductive part of the angiosperm which consist of four whorls i.e. calyx, corolla, androecium and gynoecium. This note contains detail information of flower. Learn More

Perianth of Flower

The perianth is a non-reproductive part of a flower. It contains both calyx and corolla. This note contains detail information about calyx and corolla. Learn More

Androecium

The androecium is the male reproductive whorl individual unit of which is stamen. This note contains detail information about androecium, its attachment with anther and filament, length of stamen, cohesion of stamen and adhesion of stamen. Learn More

Gynoecium

The gynoecium is a female whorl individual unit of which is carpel. This note contains detail information about gynoecium, carpel, ovary. Learn More

Aestivation and Placentation

Mode of an arrangement of sepals or petals in the bud is known as aestivation. The placenta is the tissue through which ovules remain attached to the ovary wall and get nutrition. This note contains detail information about aestivation and placentation. Learn More

Family-Cruciferae

Family-Cruciferae includes 350 genera and 3200 species. This note contains detail information about family Cruciferae. Learn More

Family-Leguminosae

This is one of the largest family of dicotyledon which includes about 600 genera and 13000 species. Family-Papilionaceae includes about 482 genera and 7200 species. This note contain deail information about family Papilionaceae. Learn More

Family-Solanaceae

This family includes 90 genera and 2200 species. The largest genus solanum includes 1700 species.This note contains detail information about family Solanaceae. Learn More

Family-Gramineae

This is the largest family of monocotyledon which includes 620 genera and more than 10,000 species. This note contains detail information about Family Gramineae. Learn More

Family- Compositae

This is the largest family of angiospermae which includes 1100 genera and over 20,000 species. This note contains detail information about Family Compositae. Learn More

Fruits

This note provides information about types of fruits and seeds. Fruits may be defined as the matured ripened ovary containing seeds. It consists of two parts, pericarp that is a fruit wall and is differentiated into three layers which are outer epicarp, middle mesocarp, and innermost endocarp. The fruit which develops without fertilization is called parthenocarpic fruit. Eg: banana. There are two types of fruits: true fruits which develop from the ovary of a flower and false fruit that develops from the fusion of floral parts with the pericarp. Learn More

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