
Lichen - Wikipedia
The shape of a lichen is usually determined by the organization of the fungal filaments. [36] The nonreproductive tissues, or vegetative body parts, are called the thallus. Lichens are grouped …
Lichen | Definition, Symbiotic Relationship, Mutualism, Types,
Dec 11, 2025 · Lichen, any of about 15,000 species of plantlike organisms that consist of a symbiotic association of algae (usually green) or cyanobacteria and fungi. They are found …
What Is a Lichen? Definition and Facts - Science Notes and Projects
Feb 11, 2023 · A lichen is a symbiotic partnership between fungi and either algae or cyanobacteria. While you may not notice lichens in the world around you, they make up a …
About Lichens - US Forest Service
The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies. The alga can be either a green alga or a blue-green …
What Is Lichen? A Complete Beginner’s Guide - Live to Plant
Jul 18, 2025 · If you’re curious about what lichen is, how it grows, and why it matters, this comprehensive beginner’s guide will walk you through everything you need to know.
LICHEN Definition & Meaning - Merriam-Webster
The meaning of LICHEN is any of numerous complex plantlike organisms made up of an alga or a cyanobacterium and a fungus growing in symbiotic association on a solid surface (such as on …
What is a Lichen? - The British Lichen Society
A lichen is not a single organism; it is a stable symbiotic association between a fungus and algae and/or cyanobacteria. Like all fungi, lichen fungi require carbon as a food source; this is …
Lichens: Characteristics, Types, Structure, Reproduction, Uses
May 22, 2025 · The internal structure of Usnea, fruticose lichen, is slightly different due to its cylindrical cross-section. The layers from outside to inside include the cortex, medulla …
Lichen sclerosus - Symptoms and causes - Mayo Clinic
Overview Lichen sclerosus (LIE-kun skluh-ROW-sus) is a condition that causes patchy, discolored, thin skin. It usually affects the genital and anal areas. Anyone can get lichen …
Ten Things You Might Not Know About Lichens, But Wish You Did ...
Tiny fragments of lichen have been found on the larvae of lacewing insects to help camouflage them and the insects disperse asexual lichen soredia (spore-like bits of lichen and algae) in …