genus
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 nom ...
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 ...
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 specime ...
Placidiopsis poronioides
''Placidiopsis'' is a genus of lichens in the family Verrucariaceae. The genus was circumscribed by Italian naturalist Francesco Beltramini de Casati in 1858, with '' Placidiopsis grappae'' assigned as the type species.
Species
*'' Placidiops ...
Placidiopsis tiroliensis
''Placidiopsis'' is a genus of lichens in the family Verrucariaceae. The genus was circumscription (taxonomy), circumscribed by Italian naturalist Francesco Beltramini de Casati in 1858, with ''Placidiopsis grappae'' assigned as the type species. ...
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Placidiopsis tominii
''Placidiopsis'' is a genus of lichens in the family Verrucariaceae. The genus was circumscribed by Italian naturalist Francesco Beltramini de Casati in 1858, with '' Placidiopsis grappae'' assigned as the type species
In zoological nomencla ...