Name:		Usnea rigida Motyka, Deutschl. Flora 3 (2) (1813) page 143
Basionym:		Usnea florida var. rigida Ach.
Synonym(s):		Usnea glauca Motyka
Status:		Species, lichen-forming
Taxonomic position:		Usnea Dill. ex Adans. [Genus] Parmeliaceae Zenker [Family] Lecanorales Nannf. [Order] Lecanoromycetidae P.M. Kirk, P.F. Cannon, J.C. David & Stalpers ex Miądl., Lutzoni & Lumbsch [Subclass] Lecanoromycetes O.E. Erikss. & Winka [Class] Pezizomycotina O.E. Erikss. & Winka [Subdivision / Subphylum] Ascomycota Caval.-Sm. [Division / Phylum] Fungi R.T. Moore [Kingdom]
Constituent taxa:		Subspecific taxa Usnea rigida var. faginea (Motyka) Clauzade & Cl. Roux Usnea rigida var. hapalotera (Harm.) Clauzade & Cl. Roux Usnea rigida var. neglecta (Motyka) Keissl. Usnea rigida var. protea (Motyka) Clauzade & Cl. Roux Usnea rigida var. reagens Räsänen ex Cretz. Usnea rigida var. rigida Usnea rigida var. subrigida Nádv.
Catalogue data:		Zahlbruckner, Catalogus Universalis Lichenum 6: 542, Zahlbruckner, Catalogus Universalis Lichenum 6: 571
Cybertruffle Resources:		Cyberliber Cumulative Index Biological Records Database (7 records)
Links:		Fungal Databases [Systematic Botany and Mycology, USDA] Genbank Google images IMI [CABI Fungus Dried Reference Collection] Index Fungorum Landcare [New Zealand] Mycobank New York Botanic Garden [Virtual Fungus Dried Reference Collection]