''Halecania'' 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 ...

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

in the family Leprocaulaceae. It has 22 species. The genus 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 Austrian lichenologist Michaela Mayrhofer in 1987, with ''

Halecania alpivaga ''Halecania'' is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with '' Halecania alpivaga'' assigned as the type species. She created ''Haleca ...

'' assigned as the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

. She created ''Halecania'' to contain species, formerly placed in ''

Lecania ''Lecania'' is a genus of lichenized fungi in the family Ramalinaceae. The genus was circumscribed by Abramo Bartolommeo Massalongo in 1853. ''Lecania'' is widely distributed, especially in temperate regions, and contains about 64 species. ...

'', with the following characteristics: uniformly

amyloid Amyloids are aggregates of proteins characterised by a Fibril, fibrillar morphology of 7–13 Nanometer, nm in diameter, a beta sheet (β-sheet) Secondary structure of proteins, secondary structure (known as cross-β) and ability to be Staining, ...

apical domes,

paraphyses Paraphyses are erect sterile filament-like support structures occurring among the reproductive apparatuses of fungi, ferns, bryophytes and some thallophytes. The singular form of the word is paraphysis. In certain fungi, they are part of the fe ...

with dark brown apical caps, and halonate

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 (i.e., surrounded by a transparent coat).

Species

*''

'' *'' Halecania athallina'' –

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

*'' Halecania australis'' *'' Halecania bryophila'' *'' Halecania elaeiza'' *'' Halecania etayoana'' *''

Halecania fuscopannariae ''Halecania'' is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with ''Halecania alpivaga'' assigned as the type species. She created ''Halecan ...

'' *'' Halecania giraltiae'' *'' Halecania laevis'' *'' Halecania lecanorina'' *'' Halecania lobulata'' *''

Halecania micacea ''Halecania'' is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with ''Halecania alpivaga'' assigned as the type species. She created ''Halecan ...

'' *'' Halecania pakistanica'' *'' Halecania panamensis'' – Panama *'' Halecania pannarica'' *'' Halecania parasitica'' *'' Halecania pepegospora'' *''

Halecania ralfsii ''Halecania'' is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with ''Halecania alpivaga'' assigned as the type species. She created ''Halecan ...

'' *''

Halecania rhypodiza ''Halecania'' is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with ''Halecania alpivaga'' assigned as the type species. She created ''Halecan ...

'' *''

Halecania robertcurtisii ''Halecania'' is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with ''Halecania alpivaga'' assigned as the type species. She created ''Halecan ...

'' – eastern North America *'' Halecania santessonii'' – Russia *'' Halecania spodomela'' *'' Halecania subalpivaga'' *'' Halecania subsquamosa'' *'' Halecania tornensis'' *'' Halecania viridescens''

References

Lecanoromycetes Lecanoromycetes genera Lichen genera Taxa described in 1987 {{Lecanoromycetes-stub