Polytrichum commune f. nigrescens (Warnst.) Albr. Rohn. Journal of Botany, British and Foreign 72: 107. 1934

Nomenclatural References

• person : Carl Warnstorf (1837-1921) Based on occurrence of standard abbreviation 'Warnst.' in the authors string.
• person : J.Huldrich Albrecht Rohner (1900-1971) Based on occurrence of standard abbreviation 'Albr.Rohn.' in the authors string.
• database : The Plant List v1.1 record tro-35217318
• database : The Plant List version 1.0, record: tro-35217318
• database : Tropicos record: 35217318 Based on data supplied by Bryonames