Homotypic Synonyms See Note

Basionym Name:
Collema undulatum var. granulosum Degel., Symb. bot. upsal. 13(no. 2): 369 (1954)

Homotypic synonyms:
Lathagrium undulatum var. granulosum (Degel.) Cl. Roux, in Roux et al., Catalogue des Lichens et Champignons Lichénicoles de France Métropolitaine (Fougères): 521 (2014)
Lathagrium undulatum var. granulosum (Degel.) M. Schultz & McCune, in McCune, Arup, Breuss, Di Meglio, Di Meglio, Esslinger, Magain, Miadlikowska, Miller, Muggia, Nelson, Rosentreter, Schultz, Sheard, Tønsberg & Walton, Mycosphere 9(4): 867 (2018)