{{Short description|Species of lichen}} {{Speciesbox | image = Pyxine albovirens - Flickr - pellaea.jpg | image_caption = | taxon = Pyxine albovirens | authority = ([[G.Mey.]]) [[André Aptroot|Aptroot]] (1987) | synonyms_ref = <ref name="Species Fungorum synonymy"/> | synonyms = *''Lecidea albovirens'' {{small|G.Mey. (1818)}} }}
'''''Pyxine albovirens''''' is a species of [[foliose lichen]] in the family [[Caliciaceae]] that is found in North America and South America. It was first [[species description|formally described]] as a species of ''[[Lecidea]]'' in 1818 by German botanist [[Georg Friedrich Wilhelm Meyer]]. [[André Aptroot]] transferred it to the genus ''[[Pyxine]]'' in 1987.<ref name="Aptroot 1987"/>
The lichen has lobes with distinctly round, laminal [[soralia]]. It contains [[lichexanthone]], a [[lichen product]] that causes the cortex to fluoresce bright yellow when lit with a long-wavelength [[UV light]]. A [[spot test (lichen)|chemical spot test]] of the [[medulla (lichenology)|medulla]] with an aqueous solution of [[potassium hydroxide]] (i.e., the K test) is partly K− and partly K+ (purplish).<ref name="Aptroot et al. 2014"/>
==References== {{Reflist|refs=
<ref name="Aptroot 1987">{{cite book |editor-last1=Görts-van Rijn |editor-first1=A.R.A. |last1=Aptroot |first1=A. |year=1987 |title=Pyxinaceae (Lichens). Flora of the Guianas |series=E: Fungi and Lichens |isbn=978-3-87429-272-6 |location=Koenigstein |publisher=Koeltz Scientific Books |page=42}}</ref>
<ref name="Aptroot et al. 2014">{{cite journal |last1=Aptroot |first1=André |last2=Jungbluth |first2=Patrícia |last3=Cáceres |first3=Marcela E.S. |title=A world key to the species of ''Pyxine'' with lichexanthone, with a new species from Brazil |journal=The Lichenologist |volume=46 |issue=5 |year=2014 |doi=10.1017/s0024282914000231 |pages=669–672 |s2cid=85901115}}</ref>
<ref name="Species Fungorum synonymy">{{cite web |title=Synonymy. Current Name: ''Pyxine albovirens'' (G. Mey.) Aptroot, in Aptroot, Flora of the Guianas, Series E: Fungi and Lichens. Fascicle 1. Pyxinaceae (Koenigstein): 42 (1987) |url=http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=133520 |publisher=[[Species Fungorum]] |access-date=4 June 2022}}</ref>
}}
{{Taxonbar|from=Q10647692}}
[[Category:Pyxine|albovirens]] [[Category:Lichen species]] [[Category:Lichens described in 1818]] [[Category:Lichens of North America]] [[Category:Lichens of South America]]
{{Caliciales-stub}}