Nom:		Placodium urbanum Motyka, Porosty (Lichenes). 4 Rodzina Lecanoraceae. Placodium, Squamarina, Harpidium, Trapelina, Mosigia (1996) page 16
Nom courant:		Lecanora albescens (Hoffm.) Branth & Rostr.
Basionyme:		Lecanora urbana Nyl.
Condition:		Espèce, lichen
Position taxonomique:		Placodium Weber ex F.H. Wigg. [Genre] Teloschistaceae Zahlbr. [Famille] Teloschistales D. Hawksw. & O.E. Erikss. [Ordre] Lecanoromycetidae P.M. Kirk, P.F. Cannon, J.C. David & Stalpers ex Miądl., Lutzoni & Lumbsch [Sous-classe] Lecanoromycetes O.E. Erikss. & Winka [Classe] Pezizomycotina O.E. Erikss. & Winka [Sous-embranchement / Sous-phylum] Ascomycota Caval.-Sm. [Embranchement / Phylum] Fungi R.T. Moore [Royaume]
L'Information des catalogues:		Index of Fungi 7: 24
Cybertruffle Resources:		Cyberliber Cumulative Index [English language only]
Liens:		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]