In this article we will discuss about:- 1. Plant Body of Ferns 2. Reproduction of Ferns 3. Life-Cycle. Plant Body of Ferns: Most of the ferns are small perennial herbs. Tree ferns with long pillar-like stem and a crown of leaves at the top are found only in tropical countries. The plant body is differentiated into steam, roots and leaves [...]
In this article we will discuss about the two main groups of division in Spermatophyta:- 1. Gymnosperms 2. Angiosperms. Spermatophyta: Group # 1. Gymnosperms: Gymnosperms are the naked-seeded plants. They formed dense vegetation in the past geological ages, but many of them are now extinct. Gymnosperms really constitute a group intermediate between angiosperms and pteridophytes. Flowers are very simple, devoid [...]
In this article we will discuss about the dispersal of fruits and seeds:- 1. Dispersal by Wind 2. Dispersal by Animals 3. Dispersal by Explosive Mechanism 4. Dispersal by Water. Dispersal by Wind (Fig. 113): Some fruits rind seeds are so small and light that they may be easily carried by wind. Many of them develop crowns of hairy outgrowths [...]