In this article we will discuss about:- 1. Definition of Stem 2. Characteristics of Stem 3. Branching 4. Forms 5. Modification 6. Functions. Definition of Stem: Stem is usually the above-ground erect ascending part of the plant body that develops from the plumule, bears leaves and flowers, grows by means of a terminal bud and shows distinction of nodes and [...]
The following points highlight the six main types of modification of aerial stems. The types are: 1. Stem Tendrils 2. Hooks 3. Stem Thorns 4. Phylloclade's 5. Cladodes 6. Thalamus. Type # 1. Stem Tendrils: Tendrils are thread-like sensitive structures which can coil around a support and help the plant in climbing. They may be branched or un-branched. Branched stem [...]
The following points highlight the eight main parts of primary dicot stem in plants. The parts are: 1. Epidermis 2. Hypodermis 3. General Cortex 4. Endodermis 5. Pericycle 6. Vascular Strand 7. Medullary or Pith Rays 8. Pith or Medulla. Dicot Stem: Part # 1. Epidermis: Epidermis is the outermost layer of the stem. It is made up of compactly [...]