Synonymy:
Acurtis Fr., Summa veg. Scand., Sectio Post. (Stockholm): 337 (1849)
Agaricus trib. Armillaria Fr., Systema Mycologicum 1: 9, 26 (1821)
Aphotistus Humb., Fl. Friberg. Spec. (Berlin): 118 (1793)
Armillaria sect. Armillariella P. Karst., Bidr. Känn. Finl. Nat. Folk 32: XII (1879)
Armillariella (P. Karst.) P. Karst., Acta Soc. Fauna Flora fenn. 2(no. 1): 4 (1881) [1881-1885]
Polymyces Battarra ex Earle, Bull. New York Bot. Gard. 5: 447 (1909)
Rhizomorpha Roth, Ann. Bot. (Usteri) 7: 7 (1791)

Position in classification:
Armillaria, Physalacriaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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