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 by thallus type, since the thallus is usually the most visually prominent part of the lichen
Lichen | Definition, Symbiotic Relationship, Mutualism, Types, Facts . . . 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 worldwide and occur in a variety of environmental conditions
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 alga, otherwise known as cyanobacteria
Lichen planus - Symptoms and causes - Mayo Clinic Lichen planus (LIE-kun PLAY-nus) is a condition of the skin, hair, nails, mouth and genitals On skin, lichen planus often appears as purple, itchy, flat bumps that develop over several weeks
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 a rock or the bark of trees)