''Lecidella'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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 ...

s in the family

Lecanoraceae The Lecanoraceae are a family of lichenized fungi in the order Lecanorales. Species of this family have a widespread distribution. Taxonomy Lecanoraceae was circumscribed by German lichenologist Gustav Wilhelm Körber in 1855. Genera According ...

Taxonomy

''Lecidella'' was

circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ...

by German lichenologist

Gustav Wilhelm Körber Gustav Wilhelm Körber (10 January 1817, Hirschberg – 27 January 1885, Breslau) was a German lichenologist. He studied natural sciences in Breslau and Berlin, obtaining his PhD in 1839 with the thesis ''De gonidiis lichenum''. After graduati ...

in 1855. It was not widely used until more than a century later, when

Hannes Hertel Hannes Hertel is a German botanist and taxonomist and was Director of the State Herbarium in Munich, Germany 1992 - 2004. His specialist areas are the fungi and lichens. Early life and education Hannes Hertel was born in 1939. His doctorate was ...

recognized it first as a

subgenus In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between t ...

of ''Lecidea'', and then a couple of year after as a distinct genus. A phylogenetic analysis of the genus using 11 species (mostly from China) found that ''Lecidella'' species fall into three major

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

s, which were proposed as three informal groups: ''Lecidella stigmatea'' group, ''L. elaeochroma'' group and'' L. enteroleucella'' group.

Description

''Lecidella'' species have a

thallus Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms wer ...

that is

crustose Crustose is a habit of some types of algae and lichens in which the organism grows tightly appressed to a substrate, forming a biological layer. ''Crustose'' adheres very closely to the substrates at all points. ''Crustose'' is found on rocks and ...

, and biatorine, meaning that it resembles the genus ''

Biatora ''Biatora'' is a genus of lichens in the family Ramalinaceae. First described in 1817,Fries EM, Sandberg A. (1817). ''Lichenum dianome nova''. Lund. the genus consists of crustose and squamulose lichens with green algal photobionts, biatorine ...

''–having a proper

exciple A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.asci ASCI or Asci may refer to: * Advertising Standards Council of India * Asci, the plural of ascus, in fungal anatomy * Accelerated Strategic Computing Initiative * American Society for Clinical Investigation * Argus Sour Crude Index * Association of ...

of the ''Lecidella'' type. The

ascospore An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or s ...

s are simple and

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

, while the

conidia A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the ...

are curved and threadlike. Morphologically similar genera include ''

Japewiella ''Japewiella'' is a genus of lichen in the family Lecanoraceae. It was circumscribed in 2000 by German botanist and lichenologist Christian Printzen as a segregate of the genus '' Japewia''. The genus name of ''Japewia'' was in honour of Peter W ...

'', '' Carbonea'', and '' Tasmidella''.

Species

''Lecidella'' was estimated to contain about 80 species in a popular 2008 text, a number that was used in a recent (2020) survey of fungal classification. ,

Species Fungorum ''Index Fungorum'' is an international project to index all formal names (scientific names) in the fungus kingdom. the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research and the Institute of Mi ...

accepts 37 species in the genus. Lecidella asema - Flickr - pellaea

*'' Lecidella aeruginea'' *'' Lecidella anomaloides'' *'' Lecidella asema'' *'' Lecidella aurata'' *'' Lecidella buelliastrum'' *''

Lecidella carpathica ''Lecidella'' is a genus of crustose lichens in the family Lecanoraceae. Taxonomy ''Lecidella'' was circumscribed by German lichenologist Gustav Wilhelm Körber in 1855. It was not widely used until more than a century later, when Hannes Hertel ...

'' *''

Lecidella chiricahuana ''Lecidella'' is a genus of crustose lichens in the family Lecanoraceae. Taxonomy ''Lecidella'' was circumscribed by German lichenologist Gustav Wilhelm Körber in 1855. It was not widely used until more than a century later, when Hannes Hertel ...

'' *'' Lecidella chodatii'' *'' Lecidella destituta'' *''

Lecidella elaeochroma ''Lecidella elaeochroma'' is a species of fungi belonging to the family Lecanoraceae. It has cosmopolitan distribution. References

{{Taxonbar, from=Q1525272 Lecanoraceae Lichen species Taxa named by Erik Acharius ...

'' *'' Lecidella enteroleucella'' *'' Lecidella euphorea'' *'' Lecidella flavosorediata'' *'' Lecidella flavovirens'' *'' Lecidella granulosula'' *'' Lecidella greenii'' *'' Lecidella laureri'' *'' Lecidella leucomarginata'' – Australia *'' Lecidella mandshurica'' – Asia *'' Lecidella meiococca'' *'' Lecidella meridionalis'' – Australia *'' Lecidella montana'' *'' Lecidella nashiana'' *'' Lecidella occidentalis'' *'' Lecidella oceanica'' – South Korea *'' Lecidella patavina'' *'' Lecidella pulveracea'' *'' Lecidella scabra'' *'' Lecidella stigmatea'' *'' Lecidella sublapicida'' *'' Lecidella subviridis'' – Norway; Sweden *'' Lecidella varangrica'' – Norway *'' Lecidella viridans'' *'' Lecidella wulfenii'' *'' Lecidella xylogena'' *'' Lecidella yunnanensis'' – China

References

{{Taxonbar, from=Q6511689 Lecanoraceae Lichen genera Lecanorales genera Taxa described in 1855 Taxa named by Gustav Wilhelm Körber