Basionym Name:Physarum congestum Sommerf., Suppl. Fl. lapp. (Oslo): 241 (1826)
Homotypic synonyms:Arcyria congesta (Sommerf.) Berk. & Broome, Ann. Mag. nat. Hist., Ser. 4 17: 140 (1876)Lachnobolus congestus (Sommerf.) Cooke, Contr. Mycol. Brit., Myxomyc. Great Brit. (London): 74 (1877)Licea congesta (Sommerf.) Wallr., Fl. crypt. Germ. (Norimbergae) 2: 345 (1833)Perichaena congesta (Sommerf.) Fr., Syst. mycol. (Lundae) 3(1): 192 (1829)