''Violella wangii'' is a widespread, but seldom-collected species of

crustose lichen Crustose lichens are lichens that form a crust which strongly adheres to the Substrate (biology), substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichen ...

in the family

Tephromelataceae The Tephromelataceae are a family of lichenized fungi in the order Lecanorales. The family was circumscribed by Austrian lichenologist Josef Hafellner in 1984. Tephromelataceae comprises the genera '' Tephromela'', '' Calvitimela'', '' Mycoblastu ...

. Found in mountainous areas of

Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul ), officially the Kingdom of Bhutan,), is a landlocked country in South Asia. It is situated in the Eastern Himalayas, between China in the north and India in the south. A mountainous ...

, China, India and the

Russian Far East The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is admini ...

, it was formally described as a new species in 2011 by lichenologists Toby Spribille and Bernard Goffinet. The

type specimen In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to a ...

was collected from Laojunshan Mountain in the

Shennongjia Forestry District Shennongjia Forestry District () is a county-level administrative unit (a "forestry district") in northwestern Hubei province, People's Republic of China, directly subordinated to the provincial government. It occupies in western Hubei, and, as of ...

(

Lijiang Lijiang (), also known as Likiang, is a prefecture-level city in the northwest of Yunnan Province, China. It has an area of and had a population of 1,253,878 at the 2020 census whom 288,787 lived in the built-up area (metro) made of Gucheng ...

prefecture) at an altitude between ; there, in a

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...

of mostly ''

Abies Firs (''Abies'') are a genus of 48–56 species of evergreen coniferous trees in the family Pinaceae. They are found on mountains throughout much of North and Central America, Europe, Asia, and North Africa. The genus is most closely related to ...

'' and ''

Rhododendron ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...

'', it was found growing on the bark of ''Rhododendron''. In the Russian Far East, it has been recorded growing on the wood of ''

Pinus pumila ''Pinus pumila'', commonly known as the Siberian dwarf pine, dwarf Siberian pine, dwarf stone pine, Japanese stone pine, or creeping pine, is a tree in the family Pinaceae native to northeastern Asia and the Japanese isles. It shares the common ...

''.

Thin-layer chromatography Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures. Thin-layer chromatography is performed on a sheet of an inert substrate such as glass, plastic, or aluminium foil, which is coated with a t ...

of collected specimens showed the presence of three

lichen product Lichen products, also known as lichen substances, are organic compounds produced by a lichen. Specifically, they are secondary metabolites. Lichen products are represented in several different chemical classes, including terpenoids, orcinol deriva ...

s: atranorin, roccellic acid, and angardianic acid. The species epithet ''wangii'' honours Dr. Wang Li-Song, "for his ongoing efforts to describe the lichen diversity in western China".

References

Lecanorales Lichen species Lichens described in 2011 Lichens of China Lichens of the Indian subcontinent Lichens of the Russian Far East Taxa named by Toby Spribille {{Lecanorales-stub