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 ...
Pannariaceae
The Pannariaceae are a family of lichens in the order Peltigerales (suborder Collematineae). Species from this family have a widespread distribution, but are especially prevalent in southern temperate regions.
Genera
According to a recent (202 ...
. It has five 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 Italian lichenologist
Abramo Bartolommeo Massalongo
Abramo Bartolommeo Massalongo (13 May 1824 – 25 May 1860) was an Italian paleobotanist and lichenologist. He was born in Tregnago in the Province of Verona and took a great interest in botany as a young man. Massalongo joined the faculty of med ...
in 1854, with ''
Physma boryanum
''Physma'' is a genus of cyanolichens in the family Pannariaceae. It has five species. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1854, with '' Physma boryanum'' assigned as the type species.
Species
...
'' 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 ...
.
Species
*''
Physma ahtianum
''Physma'' is a genus of cyanolichens in the family Pannariaceae. It has five species. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1854, with '' Physma boryanum'' assigned as the type species
In zoolo ...
''
*''
Physma boryanum
''Physma'' is a genus of cyanolichens in the family Pannariaceae. It has five species. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1854, with '' Physma boryanum'' assigned as the type species.
Species
...
''
*''
Physma byrsaeum
''Physma'' is a genus of cyanolichens in the family Pannariaceae. It has five species. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1854, with '' Physma boryanum'' assigned as the type species
In zoolog ...