Acarospora thelococcoides
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''Acarospora thelococcoides'' is a
pruinose Pruinescence , or pruinosity, is a "frosted" or dusty-looking coating on top of a surface. It may also be called a pruina (plural: ''pruinae''), from the Latin word for hoarfrost. The adjectival form is pruinose . Entomology In insects, a "blo ...
(dusty whitish) verruculose (warty) crustose
lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.terricolous A terricolous lichen is a lichen that grows on the soil as a substrate. An example is some members of the genus ''Peltigera ''Peltigera'' is a genus of approximately 100 species of foliose lichens in the family Peltigeraceae. Commonly known as ...
), especially soils made from decomposed granite.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, It grows from
San Benito, California San Benito (Spanish for "St. Benedict") is an unincorporated community in San Benito County, California, United States. San Benito is southeast of Paicines, both communities on the San Benito River. The community had a post office from 1869 to ...
to Baja California, and inland to .Acarospora thelococcoides, Lichen Flora of the Greater Sonoran Desert Region. Vol 3., Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001

/ref> Each roundish becomes more toward the top and typically has a single round apothecium that is immersed with a dark brown , so as to appear like a collection of white rings. This appearance gives it the
common name In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contrast ...
, soil eyes lichen. The
asci ASCI or Asci may refer to: * Advertising Standards Council of India * Asci, the plural of ascus, in fungal anatomy * Accelerated Strategic Computing Initiative * American Society for Clinical Investigation * Argus Sour Crude Index * Association of ...
are
saccate Saccate is a term used in botany to describe plant parts that are shaped like a pouch or sack. Sometimes, when all members of a taxon share a property of having some part being saccate, this is referred to in the name of the taxon, such as the alg ...
, with variable numbers of spherical
ascospores An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or ...
.
Lichen spot tests A spot test in lichenology is a spot analysis used to help identify lichens. It is performed by placing a drop of a chemical on different parts of the lichen and noting the colour change (or lack thereof) associated with application of the chemical ...
are all negative, and it is UV-. It is an indicator of undisturbed soil habitats.


References

{{Taxonbar, from=Q10398823 thelococcoides Lichen species Lichens described in 1891 Lichens of Mexico Lichens of the Southwestern United States Taxa named by William Nylander (botanist) Fungi without expected TNC conservation status