How to use in-sentence of “lichen”:
+ The fossil record for lichen dates back 400 million year for certain, and the signs are that earlier forms existed 600 million years ago.
+ It has a brown-green body with patches of color that look like lichen that grows on wet rocks.
+ The nearest Rock rock, wall or roof probably has lichen on it.
+ Also, lichen fungi can reproduce sexually by forming fruiting bodies containing spores.
+ The map lichen “Rhizocarpon geographicum” grows extremely slowly, and can reach an age of over 1000 years.
+ Each lichen is a flat patch bordered by a black line of spores.
+ Tiger moths usually have bright colours, footmen, lichen moths and wasp moths.
Example sentences of “lichen”:
+ Both constituents gain from their access to niches with low nutrient value, which is where lichen are found.
+ After long debate, lichen are now classified as fungi, under the genus and species of the host fungus.
+ Some lichen are eaten by humans.
+ The map lichen is a species of lichen, “Rhizocarpon geographicum”.
+ This makes the lichen look like a map or a patchwork field.
+ Many lichen are sensitive to changes around them.
+ Lichenometry is based on the assumption that the largest lichen growing on a rock is the oldest individual.
+ In all cases the lichen are quite different in appearance and life-style from either constituent; it is possibly the most complete symbiosis known.
+ It may be used for dating: the diameter of the largest lichen of a species on a rock surface shows the time that the rock has been exposed.
+ If the growth rate is known, the maximum lichen size will give a minimum age for when this rock was deposited.
+ Often the lichen is mat-like, and clings to the surface.
+ The European Space Agency discovered that lichen can survive unprotected in space.
+ Growth rates for different areas and species can be obtained by measuring maximum lichen sizes on substrates of known age, such as gravestones, historic or prehistoric rock buildings, or moraines of known age.
+ Some lichen produce natural antibiotics that kill bacteria.
+ These areas have tundra vegetation of mosses, lichen and algae.
+ A single site in Costa Rica yielded about 300 species of lichen on leaves, in the understory of the rain forest; a single fallen “Elaeocarpus” tree in New Guinea held 173 species; the evergreen laurel “Ocotea atirrensis” was found with 50–80 lichen species on a “single leaf”.
+ The deer can get at shrubby lichen under the snow.
+ The lichen is different in shape and mode of life from any of the partners.
+ Both constituents gain from their access to niches with low nutrient value, which is where lichen are found.
+ After long debate, lichen are now classified as fungi, under the genus and species of the host fungus.
+ Some lichen are eaten by humans.