In this article we will discuss about the vegetative, asexual and sexual methods of reproduction in lichens. Vegetative Reproduction: (a) By Fragmentation. Death and decay of older parts of the thallus produce smaller pieces which give rise to new thallus. Sometimes the broken pieces (fragments) develop into new thalli, provided they contain both the algal and fungal components. (b) By [...]
In this article we will learn about Lichens:- 1. Meaning of Lichens 2. Habit and Habitat of Lichens 3. Classification 4. Thallus Organisation 5. Nature of Association 6. Ecology 7. Physiology. Meaning of Lichens: Lichens constitute a small group of thallophytic and autotrophic plants. They form a unique combination of two completely different individuals, of which one belongs to algae [...]
In this article we will discuss about:- 1. Meaning of Lichens 2. Classification of Lichens 3. Occurrence 4. Internal Structure. Meaning of Lichens: Lichens is a combination of two different members belonging to two different groups, i.e., one is a fungal component while the another is an algal component. So, it is a dual organism. Algal component is called phycobiont [...]