Rhaphidorrhynchiumscorpiurus is the name of a species, part of the genus Rhaphidorrhynchium.
This name is an alternative combination by Broth. of an original description of species by Mont. under the rules of the International Code of Nomenclature for algae, fungi, and plants (ICN / commonly called the botany code)..
Hypnumscorpiurus Mont.Hypnumscorpiurus is the combination used by Mont. in the original description of the species.