Hypnumpachycarpulum is the name of a species, part of the genus Hypnum.
This name is an alternative combination by Paris of an original description of species by Müll.Hal. under the rules of the International Code of Nomenclature for algae, fungi, and plants (ICN / commonly called the botany code)..
Botany
Revisions
Limnobiumpachycarpulum Müll.Hal.Limnobiumpachycarpulum is the combination used by Müll.Hal. in the original description of the species.