The following points highlight the two main forms of combial cells in plants. The forms are: 1. Storied or Stratified Cambium 2. Non-Storied or Non-Stratified Cambium. Form # 1. Storied or Stratified Cambium (Fig. 23.1B): In TLS the initials are arranged in horizontal regular file having a stratified structure. The initials are usually short and all of about the same [...]
In this article we will discuss about the origin and activities of vascular cambium in plants. Origin of Vascular Cambium: In stems the vascular cambium and the primary vascular tissues differentiate from procambium. Procambium develops from the derivative cells of apical meristem. Transverse sections of a growing vegetative shoot apex reveal the presence of a cylinder of cells that are [...]
Vascular cambium occurs in the stele. The cells of cambium remain surrounding the primary xylem in both stems and roots. The vascular cambium is one cell thick permanent secondary meristem. It is often described as cylindrical and develops between primary xylem and-phloem. It is present in stems and roots and in their branches. It extends from tips to the bases [...]