''Arthrorhaphis'' 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 ...

-forming

fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

in the

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

family Arthrorhaphidaceae. It has 13 species. 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 ...

Theodor Magnus Fries Theodor "Thore" Magnus Fries (28 October 1832 – 29 March 1913), was a Sweden, Swedish botanist, lichenologist, and Arctic explorer. The son of the renowned mycologist Elias Magnus Fries, he served as a professor of botany and applied economic ...

in 1860. The family was proposed by lichenologists

Josef Poelt Josef Poelt was a botanist, bryologist and lichenologist. He held the chair in Systematic Botany and Plant Geography at the Free University of Berlin (1965 - 1972) and then was head of the Botanical Institute and Botanical Garden of Graz Universi ...

and

Josef Hafellner Josef Hafellner (1951– ) is an Austrian mycologist and lichenologist. He was awarded the Acharius Medal in 2016 for his lifetime contributions to lichenology. Before his retirement, he was a professor at the Karl-Franzens-Universität in Graz ...

in 1976. Species in this family have a widespread distribution in

temperate In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ran ...

and

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

habitats. They grow symbiotically with

green algae The green algae (: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/ Streptophyta. The land plants ...

, or parasitically on other lichens. The family Arthrorhaphidaceae has an uncertain taxonomic placement in the class

Lecanoromycetes Lecanoromycetes is the largest class of lichenized fungi. It belongs to the subphylum Pezizomycotina in the phylum Ascomycota. The asci (spore-bearing cells) of the Lecanoromycetes most often release spores by rostrate dehiscence. The group is ...

; that is, it is

incertae sedis or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...

with respect to ordinal placement.

Species

*'' Arthrorhaphis aeruginosa'' *'' Arthrorhaphis alpina'' *'' Arthrorhaphis anziana'' *'' Arthrorhaphis arctoparmeliae'' *'' Arthrorhaphis citrinella'' *'' Arthrorhaphis grisea'' *'' Arthrorhaphis muddii'' *'' Arthrorhaphis olivaceae'' *'' Arthrorhaphis phyllobaeis'' *'' Arthrorhaphis summorum'' *'' Arthrorhaphis vacillans'' *'' Arthrorhaphis viridescens''

References

{{Taxonbar, from=Q10418779, from2=Q4797692 Lecanoromycetes Lichen genera Lecanoromycetes genera Taxa described in 1860 Taxa named by Theodor Magnus Fries