In this essay we will discuss about the types of pollination. Essay # 1. Self-Pollination or Homogamy or Autogamy: When the pollen grains are transferred from an anther to the stigma of the same flower, the process is called self-pollination. viz. Commelina benghalensis of Commelinaceae, Argemone mexicana of Papaveraceae, Mirabilis jalapa of Nyctaginaceae etc. [On the other hand, the process [...]
In this essay we will discuss about the nomenclature of plants. After reading this essay you will learn about:- 1. Meaning of Nomenclature 2. Types of Nomenclature 3. Rules. Essay # 1. Meaning of Nomenclature: The nomenclature may be defined simply as the system of naming of plants. After determination of a new taxon based on some important characteristics, it [...]
A typical leaf consists of the following three parts (Fig. 2.55): 1. Hypopodium or Leaf-Base 2. Petiole or Mesopodium or Leaf Stalk 3. Leaf-Blade or Epipodium or Lamina. Essay # 1. Hypopodium or Leaf-Base: It is the lowermost part of a leaf by which it remains attached to the stem or branch. In many cases, it is very difficult [...]