Read this essay to learn about the anatomy of selected roots:- 1. Gram Root 2. Pea Root 3. Ranunculus Root. Essay # 1. Anatomical Study of Gram Root: A transverse section of Cicer arietinum of subfamily Papilionaceae shows the following arrangement of tissues (Fig. 5.103): (i) Epidermis: Epidermis or epiblema or pili- ferous layer is uniseriate outer boundary layer consisting [...]
Read this essay to learn about the anatomical features of monocotyledonous roots:- 1. Arum Root 2. Maize Root 3. Smilax Root 4. Orchid Root. Essay # 1. Anatomical Features of Arum Root (Monocotyledonous Root): A transverse section through the root of arum (Colocasia sp. of family Araceae) shows the following anatomical features (Fig. 5.106): (i) Epidermis: The uniseriate epiblema is [...]
In this article we will discuss about the stages of secondary growth in dicotyledonous root with the help of suitable diagrams. The roots of some herbaceous dicotyledons and of all gymnosperms and woody dicotyledons show secondary growth in thickness. The tissues of secondary origin in the dicotyledonous roots are basically similar to those of the stem, but the way of [...]