On the basis of internal structure of thallus, the lichens are divided into two groups, namely, homoiomerous and heteromerous lichens. 1. Structure of Homoiomerous Lichen Thallus: In the gelatinous lichen thalli such as Collema and Leptogium, the thallus shows a simple structure with little differentiation. It consists of a loosely interwoven mass of fungal hyphae with algal cells equally distributed [...]
In this article we will discuss about the economic importance of lichens. 1. Certain species of lichens are valuable sources of food. Most important of these are the fruticose lichen Cladonia rangiferina (Reindeer Moss) and other tundra lichens which serve as food for reindeer, caribou, musk ox and other wild animals of the Arctic tundra zone. A few species have [...]
The upcoming discussion will update you about the differences between lichens and fungi. Difference # Lichens: 1. They flourish the most in the temperate and colder regions of the globe. 2. Grow freely exposed to air and light and dislike smoky atmosphere of towns. 3. Can grow on barren substratum under drought and starvation conditions. 4. Grow generally as epiphytes [...]