''Pyxine'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

foliose lichen Foliose lichen is one of the morphological classes of lichens, which are complex organisms that arise from the symbiotic relationship between fungi and a photosynthetic partner, typically algae. This partnership allows lichen to live in diverse ...

s in the family

Caliciaceae The Caliciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. Although the family has had its classification changed several times throughout its taxonomic history, the use of mode ...

. The genus has a widespread distribution in

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

regions. The presence or absence of the compound

lichexanthone Lichexanthone is an organic compound in the structural class of chemicals known as xanthones. Lichexanthone was first isolated and identified by Japanese chemists from a species of leafy lichen in the 1940s. The compound is known to occur in ma ...

is a

character Character or Characters may refer to: Arts, entertainment, and media Literature * ''Character'' (novel), a 1936 Dutch novel by Ferdinand Bordewijk * ''Characters'' (Theophrastus), a classical Greek set of character sketches attributed to The ...

used in classifying ''Pyxine '' species; about 20 species contain this compound. This represents the largest group of foliose lichens with the compound.

Species

*''

Pyxine albovirens ''Pyxine albovirens'' is a species of foliose lichen in the family Caliciaceae that is found in North America and South America. It was first formally described as a species of ''Lecidea'' in 1818 by German botanist Georg Friedrich Wilhelm Meyer ...

'' *'' Pyxine astipitata'' – Brazil *'' Pyxine astridiana'' – neotropical *'' Pyxine australiensis'' – Asia; Australia *'' Pyxine berteriana'' – pantropical *''

Pyxine boonpragobiana ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Thailand *'' Pyxine coccifera'' *''

Pyxine cocoes ''Pyxine cocoes'', commonly known as the buttoned rosette lichen, is a widely distributed species of foliose lichen in the family Caliciaceae. Taxonomy It was first described as a new species by Swedish botanist Olof Swartz in 1788. He called ...

'' *'' Pyxine cognata'' - pantropical *''

Pyxine consocians ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *''

Pyxine convexior ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *''

Pyxine copelandii ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *''

Pyxine cylindrica ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Papua New Guinea *''

Pyxine dactyloschmidtii ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *''

Pyxine daedalea ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Costa Rica *''

Pyxine desudans ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Australia *''

Pyxine elixii ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Australia *''

Pyxine endochrysina ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *''

Pyxine endocrocea ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *''

Pyxine eschweileri ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character Character or Characters may refer to: Arts ...

'' *'' Pyxine exoalbida'' – Brazil *'' Pyxine fallax'' *'' Pyxine farinosa'' – Papua New Guinea *'' Pyxine flavicans'' *'' Pyxine glaucovirescens'' *'' Pyxine hengduanensis'' *''

Pyxine jolyana ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Brazil *'' Pyxine katendei'' – Africa *'' Pyxine keralensis'' – India *'' Pyxine lilacina'' – Africa *'' Pyxine lyei'' – Africa *''

Pyxine mantiqueirensis ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – Brazil *''

Pyxine mexicana ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a phenotypic trait, character used in classifying ''Pyxine ...

'' *'' Pyxine minuta'' *'' Pyxine nana'' – neotropical *'' Pyxine nubila'' *''

Pyxine petricola ''Pyxine petricola'' is a species of saxicolous (rock-dwelling), foliose lichen in the family Caliciaceae. The distribution of the lichen includes Australia, East Africa, North and Central America, and the Philippines. Taxonomy The lichen was ...

'' – pantropical *'' Pyxine plumea'' – Australia *'' Pyxine profallax'' *''

Pyxine pseudokeralensis ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' *'' Pyxine papuana'' – Papua New Guinea *''

Pyxine punensis ''Pyxine'' is a genus of foliose lichens in the family Caliciaceae. The genus has a widespread distribution in tropical regions. The presence or absence of the compound lichexanthone is a character used in classifying ''Pyxine '' species; about ...

'' – India *'' Pyxine pungens'' *''

Pyxine pustulata ''Pyxine pustulata'' is a species of corticolous (bark-dwelling), foliose lichen in the family Caliciaceae. Found in Botucatu, Brazil, it was formally described as a new species in 2014 by lichenologists André Aptroot and Patrícia Jungbluth ...

'' – Brazil *'' Pyxine pyxinoides'' – neotropical *'' Pyxine retirugella'' *'' Pyxine rugulosa'' *'' Pyxine schmidtii'' *'' Pyxine simulans'' - pantropical *'' Pyxine sorediata'' *'' Pyxine subcinerea'' – pantropical *'' Pyxine subcoralligera'' *'' Pyxine yercaudensis'' – India *'' Pyxine yunnanensis'' – China

References

Caliciales genera Caliciales Lichen genera Taxa named by Elias Magnus Fries Taxa described in 1825 {{Caliciales-stub