In this article we will discuss about:- 1. Introduction to Lichens 2. Classification of Lichens 3. Features 4. Nature of the Association (Physiology) 5. Habitat 6. Distribution 7. Ecological Importance. Introduction to Lichens: The lichens are a small group of curious plants with about 18,000 species. We call them curious because they are composite or […]
Lichens: Introduction and Classification | Botany
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Examples of Lichens (With Diagram)
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The following points highlight the two main examples of lichens. The examples are: 1. Parmelia 2. Usnea. Example # 1. Parmelia: It is a common example of a foliose lichen which is found growing on the bark as well as the rock intermixed with the mosses at higher altitude (above 4,000 ft.). The heteromerous thallus […]
Pollen Viability in Plants: Variations and Factors
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In this article we will discuss about:- 1. Meaning of Pollen Viability 2. Variations in the Viability of Pollen 3. Causes for the Loss 4. Factors. Meaning of Pollen Viability: Pollen viability refers to the ability of the pollen to perform its function of delivering male gametes to the embryo sac. This functional property of […]
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