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