Josef Nádvorník (13 February 1906 – 8 July 1977) was a Czech lichenologist. He was an authority on

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Caliciales Caliciales is an order of mostly lichenized fungi in the class Lecanoromycetes. It consists of two families: Caliciaceae and Physciaceae, which together contain 54 genera and more than 1200 species. The order was circumscribed by American botani ...

and, in particular, the genus ''

Physcia ''Physcia'' is a genus of lichenized fungi in the family Physciaceae. The genus name means "inflated" or "sausage-like", referring to the form of the type species. According to a 2008 estimate, the widespread genus contains 73 species. Species ...

''.

Biography

Nádvorník was born in Plaňany on 13 February 1906. After graduating from a

burgher Burgher may refer to: * Burgher (social class), a medieval, early modern European title of a citizen of a town, and a social class from which city officials could be drawn ** Burgess (title), a resident of a burgh in northern Britain ** Grand Burg ...

school in

Hlinsko Hlinsko () is a town in Chrudim District in the Pardubice Region of the Czech Republic. It has about 9,400 inhabitants. It is the natural centre of a microregion called ''Hlinecko''. The local part of Betlém is well preserved example of folk arch ...

, he studied at a teacher training institute in

Chrudim Chrudim () is a town in the Pardubice Region of the Czech Republic. It has about 23,000 inhabitants. It is the second largest town of the region. The historic town centre is well preserved and is protected by law as an urban monument zone. Admin ...

, from where he graduated in 1925. He started employment as a teacher in

Uzhhorod Uzhhorod ( uk, У́жгород, , ; ) is a city and municipality on the river Uzh in western Ukraine, at the border with Slovakia and near the border with Hungary. The city is approximately equidistant from the Baltic, the Adriatic and the B ...

(now

Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...

), working there from the period 1925–1938. With the onset of the

German occupation of Czechoslovakia German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

, he was forced to return to the

Protectorate of Bohemia and Moravia The Protectorate of Bohemia and Moravia; cs, Protektorát Čechy a Morava; its territory was called by the Nazis ("the rest of Czechia"). was a partially annexed territory of Nazi Germany established on 16 March 1939 following the German oc ...

from where he first started as a teacher, in Hlinsko and later in Prague. With the support and encouragement of lichenologist Miroslav Servít (1886–1959), Nádvorník began collecting and studying

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship. although he did this in his spare time without support financially. In the 1940s he published two important

monograph A monograph is a specialist work of writing (in contrast to reference works) or exhibition on a single subject or an aspect of a subject, often by a single author or artist, and usually on a scholarly subject. In library cataloging, ''monograph ...

s on the lichen families

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 ...

and

Physciaceae The Physciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. A 2016 estimate placed 19 genera and 601 species in the family. Genera This is a list of the genera contained within ...

. Nádvorník's expertise was on lichens of the order

Caliciales Caliciales is an order of mostly lichenized fungi in the class Lecanoromycetes. It consists of two families: Caliciaceae and Physciaceae, which together contain 54 genera and more than 1200 species. The order was circumscribed by American botani ...

and later also on the genus ''

''. He described 5 new

genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...

, 13

sections Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially of a chapter, in books and documents ** Section sig ...

and 49 species. Nádvorník was the first lichenologist to study and publish lichens from

Carpathian Ruthenia Carpathian Ruthenia ( rue, Карпатьска Русь, Karpat'ska Rus'; uk, Закарпаття, Zakarpattia; sk, Podkarpatská Rus; hu, Kárpátalja; ro, Transcarpatia; pl, Zakarpacie); cz, Podkarpatská Rus; german: Karpatenukrai ...

. He described the difficult conditions of his lichenological research in a letter to Miroslav Servít.

Floristic {{Short pages monitor