In this essay we will discuss about:- 1. Roots of Glossopteris 2. Leaves of Glossopteris 3. Fructification. Essay # 1. Roots of Glossopteris: The detached roots of Glossopteris plant are called Vertebraria (Fig. 1.9B). The roots are flattened and grooved with wedge-like sectors that radiate from the centre of the axis. The wedges are made up of secondary xylem which [...]
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:- 1. Stems of Lyginopteris Oldhamia 2. Fronds of Lyginopteris Oldhamia 3. Roots 4. Pollen-Bearing Organs 5. Seeds. Essay # 1. Stems of Lyginopteris Oldhamia: The frequently branched stem of Lyginopteris oldhamia was long, slender (2 mm to 4 cm in diameter). The anatomy of the stem (Fig. 1.2A) shows eustelic configuration with [...]