''Phlyctis'' 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 ...

lichen A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...

ized fungi in the order

Gyalectales ''Gyalectales'' is an order of lichen-forming fungi in the class Lecanoromycetes. It contains 5 families, 18 genera and about 550 species. Taxonomy The Gyalectales were introduced in a 1974 publication by Aino Henssen and Martin Jahns, but not ...

, and the

type genus In biological taxonomy, the type genus (''genus typica'') is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearin ...

of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was

circumscribed In geometry, a circumscribed circle for a set of points is a circle passing through each of them. Such a circle is said to ''circumscribe'' the points or a polygon formed from them; such a polygon is said to be ''inscribed'' in the circle. * Circum ...

by German lichenologist Julius von Flotow in 1850. The ''Dictionary of the Fungi'' (2008) estimated the widespread genus to contain 12 species, but several species have been described and added to the genus since then.

Species

*''

Phlyctis agelaea ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed by German lichenologist Julius von Fl ...

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Phlyctis argena ''Phlyctis argena'' is a species of crustose lichen. Description ''Phlyctis argena'' has a thin crustose thallus that is white, greyish or green-grey in colour. The identification can be confirmed with the spot test application a drop of potassi ...

'' *''

Phlyctis boliviensis ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed In geometry, a circumscribed circle fo ...

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Phlyctis communis ''Phlyctis communis'' is a species of corticolous (bark-dwelling) crustose lichen in the family Phlyctidaceae. Found in the Maharashtra state of India, it grows on the bark of tree trunks in semi-evergreen to dry deciduous forests. Described as ...

'' – India *''

Phlyctis himalayensis ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed by German lichenologist Julius von Fl ...

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Phlyctis karnatakana ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed by German lichenologist Julius von Fl ...

'' – India *''

Phlyctis ludoviciensis ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed by German lichenologist Julius von Fl ...

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Phlyctis lueckingii ''Phlyctis lueckingii'' is a species of corticolous (bark-dwelling) lichen in the family Phlyctidaceae. Found in Sri Lanka, it was formally described as a new species by Gothamie Weerakoon and André Aptroot in 2016. The type was collected on th ...

'' – Sri Lanka *''

Phlyctis monosperma ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed In geometry, a circumscribed circle fo ...

'' – India *''

Phlyctis petraea ''Phlyctis petraea'', the eggshell rock blaze, is a species of saxicolous (rock-dwelling) crustose lichen in the family Phlyctidaceae. Found in eastern North America, it was formally described as a new species in 2017 by Richard Clinton Harri ...

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Phlyctis psoromica ''Phlyctis psoromica'' is a species of corticolous (bark-dwelling) crustose lichen in the family Phlyctidaceae. Native to New South Wales, Australia, it was described as new to science in 2011. This lichen is characterised by its whitish to p ...

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Phlyctis sirindhorniae ''Phlyctis sirindhorniae'' is a little-known species of corticolous (bark-dwelling), crustose lichen in the family Phlyctidaceae. It shares some similarities with ''Phlyctis agelaea'' but can be distinguished by its smaller , larger , and a hig ...

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Phlyctis subagelaea ''Phlyctis subagelaea'' is a species of crustose lichen in the family Phlyctidaceae. It was described as new to science in 2006 from material collected in the tropical forests of southern India. Its species epithet, ''subagelaea'', refers to it ...

'' – India *''

Phlyctis subargena ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed by German lichenologist Julius von Fl ...

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Phlyctis subhimalayensis ''Phlyctis subhimalayensis'' is a species of corticolous (bark-dwelling), crustose lichen in the family Phlyctidaceae. It is found in certain high-elevations regions of the Himalayas and Southwestern China. Taxonomy ''Phlyctis subhimalayensis' ...

'' – India *''

Phlyctis subuncinata ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscribed In geometry, a circumscribed circle fo ...

'' *''

Phlyctis tolgensis ''Phlyctis'' is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens. The genus was circumscription (taxonomy), circumscribed by German l ...

'' – Australia

References

Gyalectales Lichen genera Gyalectales genera Taxa described in 1831 Taxa named by Karl Friedrich Wilhelm Wallroth {{Lecanoromycetes-stub