Adamczyk (1995)[2590] (as Collybia butyracea var. asema), Adamczyk (2003)[1263] (as: Collybia butyracea var. asema), Adamczyk (2003)[1264] (Collybia butyracea var. asema), Adamczyk (2007)[1268], Adamczyk (2011)[1272], Adamczyk i in. (2008)[1281], Brzeg & Lisiewska (2020)[1331], Bujakiewicz (2004)[1339] (as: Collybia asema), Bujakiewicz (2018)[1344] (as: Collybia asema), Bujakiewicz & Kujawa (2010)[1346], Celka (2000)[1354] (as: Collybia butyracea var. asema), Domański Z. (2001)[3794] (as Collybia butyracea var. asema), Fiedorowicz (2009)[1441], Flisińska (2000)[3510] (as Collybia asema), Flisińska (2000)[1448] (as: Collybia asema), Flisińska (2002)[1451] (as: Collybia butyracea), Flisińska (2004)[1452] (as: Collybia asema), Friedrich (2010)[1460], Friedrich (2020)[1466], Friedrich & Orzechowska (2002)[1468] (as: Collybia butyracea var. asema), Gierczyk (2022)[3842], Gierczyk & Kujawa (2020)[1487], Gierczyk et al. (2009)[1482], Gierczyk et al. (2013)[1502], Gierczyk et al. (2014)[1493], Gierczyk et al. (2015)[1491], Gierczyk et al. (2018)[1501], Gierczyk et al. (2018)[1509], Gierczyk et al. (2019)[1495], Gierczyk et al. (2020)[1497], Grzesiak et al. (2017)[1528], Grzesiak et al. (2017)[1533], Halama (2015)[1546], Halama & Romański (2010)[1565], Jagodziński et al. (2011)[1600], Kałucka (2009)[1626], Kałucka et al. (2013)[3664], Karasiński et al. (2015)[1643], Kasprowicz et al. (2011)[1656], Komorowska (2000)[1668], Kryza i Puciata (2009)[1726], Kudławiec (2015)[1739], Kujawa (2009)[1752], Kujawa et al. (2012)[1800], Kujawa et al. (2013)[1796], Kujawa et al. (2020)[1783], Kujawa et al. (2023)[3757], Lisiewska (2000)[1838] (as: Collybia butyracea var. asema), Lisiewska (2004)[1839] (as: Collybia asema), Lisiewska & Flisiewicz (2006)[1842], Lisiewska & Król (2007)[1844], Lisiewska & Marach (2002)[1847] (as: Collybia butyracea var. asema), Lisiewska & Reszel (2000)[1848] (as: Collybia butyracea var. asema), Lisiewska & Strakulska (2002)[1849] (as: Collybia butyracea var. asema), Ławrynowicz (2000)[1858] (as: Collybia asema), Ławrynowicz (2001)[1860] (as: Collybia asema), Ławrynowicz & Stasińska (2000)[1871] (as: Collybia butyracea var. asema), Ławrynowicz & Szkodzik (2002)[1872] (as. Collybia asema), Ławrynowicz et al. (2001)[1867] (as: Collybia asema), Ławrynowicz et al. (2002)[1863] (as: Collybia asema), Ławrynowicz et al. (2009)[1874] (as: Collybia butyracea var. asema), Ławrynowicz i in. (2002a)[1864] (as: Collybia asema), Łuszczyński (2001)[1886] (as: Collybia butyracea var. asema), Łuszczyński (2007)[1896], Łuszczyński (2008)[1898], Łyczek et al. (2006)[1929], Mleczko & Beszczyńska (2015)[1961], Narkiewicz (2011)[1997], Ronikier (2012)[2144], Salamaga & Slusarczyk (2014)[2188], Skorupski et al. (2011)[2195], Szkodzik (2005)[2371] (as: Collybia asema), Ślusarczyk (2012)[2389], Ślusarczyk (2019)[2393], Ślusarczyk (2021)[2400], Trocha et al. (2012)[2415], Wilga (2000)[2432] (as: Collybia butyracea v. asema), Wilga (2004)[2441] (as: Collybia butyracea var. asema), Wilga & Wantoch-Rekowski (2008)[2471], Wilga & Wantoch-Rekowski (2011)[2475], Wilga & Wantoch-Rekowski (2019)[2488], Wojewoda et al. (2016)[2542], Wojterska et al. (2012)[3665]
