In this essay we will discuss about the pinus. After reading this essay you will learn about:- 1. External Morphology of Pinus 2. Internal Structure of Pinus 3. Stem 4. Leaf. Essay # 1. External Morphology of Pinus: Pinus shows a typical tap root system. The tap root (long root) persists but several lateral roots (short or dwarf root) grow [...]
In this essay we will discuss about:- 1. Root of Cordaitales 2. Stem of Cordaitales 3. Leaf 4. Fructification 5. Seed. Essay # 1. Root of Cordaitales: The roots of cordaitales are highly branched and shallow forming stilt roots like those of mangroves. This indicates the halophytic nature of the plants which grew along the sea shores. Anatomically, the root [...]
In this essay we will discuss about the life cycle of Pinus, explained with the help of suitable diagrams. Sporophyte of Pinus: Pinus is a tall evergreen tree giving rise to a series of widespread horizontal branches (Fig. 1.57A). In each year, a whorl of branches is produced in the axil of scale leaves. The branching is restricted to the [...]