In this article we will discuss about the process of healing of wounds in plants, explained with the help of suitable diagrams. Plant organs often are wounded by adverse calamities of nature, grazing animals and human interference etc. As a result the living cells are exposed and they are subjected to desiccation and attack by bacteria, fungi and other pathogenic [...]
In this article we will discuss about the phylogenetic organs of flower. Most Taxonomists agree that angiosperms form a natural group. They are monophyletic that is, their origin is from one ancestor only. But the ancestor is to be identified definitely. The ancestral organs from where the extant floral parts evolved are not known. Wilson (1982) regards that angiosperms evolved [...]
In this article we will study about the secondary structures of plant with the help of suitable diagrams. A. Stem of Aristo-lochia Sp. (Fig. 7.1): In the primary condition the stem reveals the features of a typical dicotyledonous stem, i.e., presence of uniseriate epidermis, well differentiated cortex, ring arrangement of vascular bundles which are distinctly collateral and open type, [...]