Here is a list of twenty-eight types of stems found in plants. 1. Stem of Helianthus Annuus (Sunflower. Family Asteraceae: Internal Structure before Secondary Growth): The transverse section through the internode of stem is more or less circular in outline and exhibits the following arrangement and structure of tissues from periphery towards centre (Figs. 31.1, 31.1A). Epidermis: The outermost layer [...]
In this article we will discuss about the process of development of leaf, explained with the help of diagrams. In the shoot system of plants the leaf is the principal lateral appendage of stem. A leaf has determinate growth. The foliage leaves are of two types — microphyllous- and macrophyllous leaf and the leaves are also called microphyll and megaphyll [...]
The below mentioned article provides an essay on xerophytes. Xeric habitat characterizes xerophytes (xero = dry, phytes = plants). Xerophytes evolved to survive in an ecosystem where there is deficiency in available water. This includes the areas that are subjected to drought like deserts where low rainfall is the norm. The areas may also include physiologically dry soil (not physically [...]