Nome:		Lethagrium A. Massal., (1853) página 90 [basiônimo]
Nome aceito:		Collema Weber ex F.H. Wigg.
Categoria:		Gênero, líquen
Posição taxonômica:		Collemataceae Zenker [Família] Peltigerales Walt. Waton [Ordem] Lecanoromycetidae P.M. Kirk, P.F. Cannon, J.C. David & Stalpers ex Miądl., Lutzoni & Lumbsch [Subclasse] Lecanoromycetes O.E. Erikss. & Winka [Classe] Pezizomycotina O.E. Erikss. & Winka [Subdivisão / Subfilo] Ascomycota Caval.-Sm. [Divisão / Filo] Fungi R.T. Moore [Reino]
Táxons constituintes:		Espécies Lethagrium akralense Flagey Lethagrium ascaridosporum A. Massal. Lethagrium conglomeratum Lethagrium fasciculare (L.) A. Massal. Lethagrium flaccidulum Flagey Lethagrium flaccidum (Ach.) Arnold Lethagrium laureri (Flot.) Arnold Lethagrium muelleri (Hepp) Arnold Lethagrium multipartitum (Nyl.) Kremp. Lethagrium nigrescens (Huds.) A. Massal. Lethagrium orbiculare (Schaer.) Arnold Lethagrium polycarpon (Hoffm.) Arnold Lethagrium ruginosum (Dufour ex Schaer.) Bagl. Lethagrium rupestre (Sw.) A. Massal. Lethagrium stygium (Schaer.) Arnold Lethagrium thysaneum (Ach.) Flagey Lethagrium turgidum (Körb.) A. Massal. Lethagrium undulatum (Laurer ex Flot.) Poetsch Lethagrium verruculosum A. Massal.
Cybertruffle Resources:		Cyberliber Cumulative Index [English language only]
Links:		Fungal Databases [Systematic Botany and Mycology, USDA] Genbank Google imagens IMI [CABI Fungus Dried Reference Collection] Index Fungorum Landcare [New Zealand] Mycobank New York Botanic Garden [Virtual Fungus Dried Reference Collection]