Microthamnium acrorrhizon (Hornsch.) Angström
Microthamnium acrorrhizon is the name of a species, part of the genus Microthamnium.
This name is an alternative combination by Angström of an original description of species by Hornsch. under the rules of the International Code of Nomenclature for algae, fungi, and plants (ICN / commonly called the botany code)..
Botany