Synonymy:
Agaricus tabescens Scop., Fl. carniol., Edn 2 (Wien) 2: 446 (1772)
Collybia tabescens (Scop.) Sacc., Syll. Fung. (Abellini) 5: 206 (1887)
Fungus tabescens (Scop.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 480 (1898)
Clitocybe tabescens (Scop.) Bres., Fung. trident. 2(14): 85 (1900)
Armillaria mellea var. tabescens (Scop.) Rea & Ramsb., Trans. Br. mycol. Soc. 5(3): 352 (1917) [1916]
Armillaria tabescens (Scop.) Emel, Le Genre Armillaria (Strasbourg): 50 (1921)
Collybia mellea subsp. tabescens (Scop.) Emel, Le Genre Armillaria (Strasbourg): 76 (1921)
Armillariella tabescens (Scop.) Singer, Annls mycol. 41(1/3): 19 (1943)

Agaricus socialis DC., Fl. franç., Edn 3 (Paris) 5/6: 48 (1815)
Armillaria socialis (DC.) Fayod, Annls Sci. Nat., Bot., sér. 7 9: 232 (1889)
Clitocybe gymnopodia var. socialis (DC.) Costantin & L.M. Dufour, Nouv. Fl. Champ., Edn 1 (Paris): 27 (1891)

Agaricus monadelphus Morgan, J. Cincinnati Soc. Nat. Hist. 6: 69 (1883)
Clitocybe monadelpha (Morgan) Sacc., Syll. Fung. (Abellini) 5: 164 (1887)

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

Note:
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