Name:		Placynthium nigrum Gray, (1821) page 395
Basionym:		Lichen niger Huds.
Status:		Species, lichen-forming
Taxonomic position:		Placynthium (Ach.) Gray [Genus] Placynthiaceae Å.E. Dahl [Family] Peltigerales Walt. Waton [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 Placynthium nigrum forma agglomeratum Walt. Watson Placynthium nigrum forma caespititium (Wedd.) Walt. Watson Placynthium nigrum forma corallinodes (Schaer.) Walt. Watson Placynthium nigrum forma crustaceum (Hepp) Walt. Watson Placynthium nigrum forma macrosporum Gyeln. Placynthium nigrum forma majus (Harm.) Gyeln. Placynthium nigrum forma nigrescens Gyeln. Placynthium nigrum forma nigrum Placynthium nigrum forma psotinum (Fr.) Walt. Watson Placynthium nigrum forma sparsum Gyeln. Placynthium nigrum forma tapetiforme Gyeln. Placynthium nigrum forma triseptatum (Nyl.) Walt. Watson Placynthium nigrum forma uniforme Gyeln. Placynthium nigrum var. crustaceum Hepp Placynthium nigrum var. fuscum (Hepp) Trevis. Placynthium nigrum var. nigrum Placynthium nigrum var. psotina Placynthium nigrum var. tantaleum (Hepp) Arnold Placynthium nigrum var. triseptatum (Nyl.) Hue
Catalogue data:		Zahlbruckner, Catalogus Universalis Lichenum 3: 229, Zahlbruckner, Catalogus Universalis Lichenum 8: 299
Cybertruffle Resources:		Cyberliber Cumulative Index Biological Records Database (67 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]