How are lichens classified?

Lichens are classified with the fungi (being sometimes referred to as lichenized fungi). The fungi incorporated into lichens are largely ascomycetes, with very few basidiomycetes involved.

What are the 3 types of lichens?

There are three main types of lichens: Foliose. Fruticose. Crustose.

What is common name for Foilose lichens?

Flavoparmelia caperata, a common foliose lichen that grows on limbs of shrubs in the coastal sage scrub and chaparral of San Diego County. The thallus is covered with mealy particles (soredia) produced by laminal soralia.

How do you identify a Crustose lichen?

Description Crustose lichen thallus pale grey to brown incrusted in the bark. Often separated by a black pro-thallus. The apothecia are black, stellate and slightly raised. The lichen is common on smooth bark of trees and shrubs.

What are the 4 basic forms of lichens?

4 Main Types of Lichen Thallus (With Diagram) | Botany
  • Type # 1. Crustose (Crustaceous) Lichens:
  • Type # 2. Foliose (Foliaceous) Lichens:
  • Type # 3. Fruticose Lichens:
  • Type # 4. Squamulose Lichens:

What are characteristics of lichen?

Lichens have a body called a thallus, an outer, tightly packed fungal layer called a cortex, and an inner, loosely packed fungal layer called a medulla (Figure 5.5. 1). Lichens use hyphal bundles called rhizines to attach to the substrate.

What is an example of crustose lichens?

– Examples of crustose lichens include Graphis, Lepraria, Lecidae, etc. Hence, option D is the correct option for this question. Note: The lichens are widely used as the bio indicators because they cannot grow in a polluted area.

Which is example of foliose lichen?

Cetraria, Cluiudhuria, Parmelia and Xanthoria are a few examples of foliose lichens.

How do you identify foliose lichen?

Foliose lichens in the moist places or in wet condition may look greener, but have thick, leathery thallus while liverworts have non-leathery and slimy thallus. The dimorphic forms of lichens such as Cladonia may confuse with the leaf liverworts and mosses.

How many species of lichens are there?

Introduction. There are at least 13,000 species of lichens living throughout the world. Lichen species are so numerous and diverse that there are individual exceptions to most general statements about them.

What is another word for lichen?

In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for lichen, like: fungus-alga, epiphytic, crustose, fungus, red-algae, lichens, thallophyte, epiphyte, bryophyte, Brachythecium and foliose.

What is lichen short answer?

A lichen, or lichenized fungus, is actually two organisms functioning as a single, stable unit. Lichens comprise a fungus living in a symbiotic relationship with an alga or cyanobacterium (or both in some instances). There are about 17,000 species of lichen worldwide.

What is the scientific name of lichen?

The fungus is called a mycobiont. The photosynthesizing organism is called a photobiont. Algal photobionts are called phycobionts. Cyanobacteria photobionts are called cyanobionts. The part of a lichen that is not involved in reproduction, the “body” or “vegetative tissue” of a lichen, is called the thallus.

What is the most common type of lichen?

The most common are single-celled green algae of the genus Trebouxia (Figure H), which are found in many lichens of temperate and arctic/alpine regions, including all species of the common lichen genus Cladonia (see Figures D, E).