''Pyxine'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

foliose lichen A foliose lichen is a lichen with flat, leaf-like , which are generally not firmly bonded to the substrate on which it grows. It is one of the three most common growth forms of lichens. It typically has distinct upper and lower surfaces, each o ...

s in the family

Caliciaceae The Caliciaceae are a family (taxonomy), family of mostly lichen-forming fungus, fungi belonging to the class (taxonomy), class Lecanoromycetes in the division (mycology), division Ascomycota. Although the family has had its classification chan ...

. The genus has a widespread distribution in

tropical The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

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 foliose lichen, leafy lichen in the 1940s. The compound is known ...

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 Theoph ...

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 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 The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrast ...

'' – Thailand *''

Pyxine coccifera ''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 cocoes'' *'' 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; ab ...

'' *''

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; ab ...

'' *''

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; ab ...

'' *''

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; ab ...

'' – 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; ab ...

'' *''

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; ab ...

'' – 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; ab ...

'' – 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; ab ...

'' – 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; ab ...

'' *''

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; ab ...

'' *'' Pyxine eschweileri'' *'' Pyxine exoalbida'' – Brazil *'' Pyxine fallax'' *'' Pyxine farinosa'' – Papua New Guinea *'' Pyxine flavicans'' *'' Pyxine glaucovirescens'' *'' Pyxine hengduanensis'' *'' Pyxine jolyana'' – Brazil *'' Pyxine katendei'' – Africa *'' Pyxine keralensis'' – India *'' Pyxine lilacina'' – Africa *'' Pyxine lyei'' – Africa *'' Pyxine mantiqueirensis'' – Brazil *'' Pyxine mexicana'' *'' Pyxine minuta'' *'' Pyxine nana'' – neotropical *'' Pyxine nubila'' *'' Pyxine petricola'' – pantropical *'' Pyxine plumea'' – Australia *'' Pyxine profallax'' *'' Pyxine pseudokeralensis'' *'' Pyxine papuana'' – Papua New Guinea *'' Pyxine punensis'' – India *'' Pyxine pungens'' *'' Pyxine pustulata'' – 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 Lichen genera Taxa named by Elias Magnus Fries Taxa described in 1825 {{Caliciales-stub