''Lobothallia'' is a genus of

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.family

Megasporaceae Megasporaceae are a family of fungi belonging to the order Pertusariales. Taxa are lichenized with green algae, and grow on rocks, often in maritime climates close to fresh water. Phylogenetic analysis has shown that this family is related to the ...

. Species in the genus have foliose thalli that become crustose areolate in the center with age, and grow on calcareous to

siliceous rock Siliceous rocks are sedimentary rocks that have silica (SiO2) as the principal constituent. The most common siliceous rock is chert; other types include diatomite. They commonly form from silica-secreting organisms such as radiolarians, diatoms, or ...

s.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, The crustose part of the body may keep its lower cortex, though not always.Lichen Flora of the Greater Sonoran Desert Region. Vol 2, Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001

/ref> Dark brown to black apothecia may be sunken into the surface of the thallus, as indicated in 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 ...

puffed sunken disk lichen. Members grow to or more radiating lobes ( placodioid). The photobiont is

green alga The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as ...

from the genus ''

Trebouxia ''Trebouxia'' is a unicellular green alga.Silverside, A. J. (2009). Retrieved from http://www.bioref.lastdragon.org/Chlorophyta/''Trebouxia''.html It is a photosynthetic organism that can exist in almost all habitats found in polar, tropical, and ...

''. The genus is represented in Eurasia, Asia, North Africa, Central America, western North America, and Australia.

Species

, Species Fungorum accepts 17 species of ''Lobothallia''. * '' Lobothallia alphoplaca'' * '' Lobothallia brachyloba'' * '' Lobothallia cernohorskyana'' * '' Lobothallia chadefaudiana'' * '' Lobothallia cheresina'' * '' Lobothallia controversa'' * '' Lobothallia crassimarginata'' – China * '' Lobothallia epiadelpha'' * '' Lobothallia farinosa'' * '' Lobothallia gangwondoana'' * ''

Lobothallia hedinii ''Lobothallia'' is a genus of lichens in the family Megasporaceae. Species in the genus have foliose thalli that become crustose areolate in the center with age, and grow on calcareous to siliceous rocks.Field Guide to California Lichens, ...

'' * ''

Lobothallia helanensis ''Lobothallia'' is a genus of lichens in the family Megasporaceae. Species in the genus have foliose thalli that become crustose areolate in the center with age, and grow on calcareous to siliceous rocks.Field Guide to California Lichens, ...

'' – China * '' Lobothallia hydrocharis'' * '' Lobothallia lacteola'' * '' Lobothallia melanaspis'' * '' Lobothallia praeradiosa'' * '' Lobothallia pruinosa'' – China * '' Lobothallia radiosa'' * '' Lobothallia recedens'' * '' Lobothallia semisterilis'' * '' Lobothallia subdiffracta'' * '' Lobothallia zogtii''

References

Pertusariales Pertusariales genera Lichen genera Taxa described in 1984 Taxa named by Georges Clauzade Taxa named by Claude Roux {{Pertusariales-stub