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Lichens that grow immersed inside plant tissues are called endophloidic lichens or endophloidal lichens. [35] [39]: 159 Lichens that use leaves as substrates, whether the leaf is still on the tree or on the ground, are called epiphyllous or foliicolous. [44] A terricolous lichen grows on the soil as a substrate. Many squamulose lichens are ...
Many lichens have been used medicinally across the world. A lichen's usefulness as a medicine is often related to the lichen secondary compounds that are abundant in most lichen thalli. Different lichens produce a wide variety of these compounds, most of which are unique to lichens and many of which are antibiotic.
Usnea filipendula – one of about 20,000 described species of lichen. The following outline provides an overview of and topical guide to lichens.. Lichen – composite organism made up of multiple species – a fungal partner, one or more photosynthetic partners, which can be either green algae or cyanobacteria, and, in at least 52 genera of lichens, a yeast. [1]
One reason the greenshield lichen can be more commonly found than other lichen species is because it is relatively tolerant of pollution. Lichens are often used to monitor air quality.
Edible lichens are lichens that have a cultural history of use as a food. Although almost all lichen are edible (with some notable poisonous exceptions like the wolf lichen , powdered sunshine lichen , and the ground lichen [ 1 ] ), not all have a cultural history of usage as an edible lichen.
A chemical spot test can be used to detect the presence of certain lichen products which can be characteristic of a given lichen species. Some components of certain lichens may also fluoresce under ultraviolet light , providing another form of lichen identification test.
Lichen species common names are often the same as the common name of the genus they are in, or are a modification of that common name by adding an adjective. But sometimes the parts of a lichen species common name are common names of other lichen genera. For example, Psilolechia lucida, in the genus Psilolechia, is commonly called "sulphur dust ...
alectorioid lichen An informal growth form category used for lichens that are fruticose, typically with beard-like thalli that are pendant or clustered; this group of features is characteristic of lichens now classified in the genera Alectoria, Bryoria, Oropogon, Pseudephebe, and Sulcaria.