Category: Morphology Of Plants

Dispersal of Fruit & Seeds

Dispersal of Fruit & Seeds The plants are fixed to the ground therefore they must develop a mechanism for distribution of their seeds and fruits. Thus, they adopted a mechanism of dispersal. The dispersal of fruit and seed refers to the carrying of these structures to places away from the plants producing them. If there [Continue]

Morphology of Fruit

Morphology of Fruit The simulation of fertilization causes series of changes, not in the ovule but also in the wall of ovary. As a result, into these changes, the ovule developed into seeds while the ovary form the fruit. The fruit may be defined as ripened ovary containing seeds. The wall of the fruit is [Continue]

Morphology Of The Flower

Morphology Of The Flower Flower is highly modified reproductive shoot. A typical flower consists of four distinct circles of whorls of floral leaves, the calyx, corolla, androecium and gynoecium, arranged on the thalamus. The calyx comprises of usually green floral leaves, the sepals and forms the outermost protective whorl. The corolla comprises of variously coloured [Continue]


Inflorescence  The arrangement of flowers on floral axis or peduncle resulting in formation of groups is called inflorescence. An inflorescence may be; simple, compound or of special types according to the mode of branching. Simple Inflorescence A simple inflorescence maybe racemose or cymose according to the mode of branching. Racemose Inflorescence: In this type of [Continue]


 SECONDARY GROWTH IN STEM  SECONDARY GROWTH IN STEM The  stem increases in thickness In secondary growth. Secondary growth increases the  vascular tissues.  Therefore, it increases the thickness of flue stein. Secondary growth is common in gymnosperms and  woody dicots. But it is generally absent in most of the herbaceous dicots and monocots. Seeondary growth includes [Continue]


FERNS-PTEROPSIDA STUDY Occurrence Polypodium is a perennial herb. It is found mostly in temperate regions. It has worldwide distribution. Mostly is attached to some rocks. But some forms are epiphytic. General structure The plant body is sporophyte. Plant body is divided into rhizome. leaves and roots. 1.  Rhizome: It forms the main stem of the [Continue]


STUDY OF PLANT SEED-SEED HABIT SEED HABIT A seed consists of an embryo, stored food and a seed coat. The seed habit is the most complex and evolutionary successful method of sexual reproduction. It is found in vascular pIants. Today, seed plants, gymnosperms and angiosperms flowering plants are the most diverse lineage within the vascular [Continue]

Morphology of Plants Leaf

Morphology of Plants  Leaf Leaf is principal appendage of the stem or on branches of a plant. They arise from nodes and bear lateral buds in their axils. A leaf is a chief photosynthetic organ of a plant. They are developed in acropetal succession and are exogenous in origin. Leaf Morphology: Each leaf consists of [Continue]


1. Differentiate between tap and adventitious roots. Ans: Tap root arise from the embryo. Adventitious root develops from other mature tissues of plant like stem etc. 2. What are root hairs? Give their functions. Ans: A root hair starts its growth as a small papilla on the outer wall. The nucleus and cytoplasm migrate into [Continue]

Morphology of Plants – The Stem

The Stem The main stem is the portion of the primary axis of the plant which develops from the plumule axis. An axis, together with the leaves which it bears, is called a shoot. A branch is also a shoot, for it consists of an elongation axis or stem with its own set of leaves. [Continue]