) Kovalenko (1989), ≡ Hygrocybe virginea P.D. Orton & Watling, Notes R. bot. Gdn Edinb. 29(1): 132 (1969), ≡ Agaricus virgineus Wulfen, in Jacquin, Miscell. austriac. C188-9 chemical structure 2: 104 (1781), sanctioned by Fr., Syst. mycol. 1: 100 (1821) Genus Ampulloclitocybe Redhead, Lutzoni, Moncalvo & Vilgalys, Mycotaxon 83: 36 (2002), type species Ampulloclitocybe clavipes (Pers.) Redhead, Lutzoni, Moncalvo & Vilgalys, Mycotaxon 83: 36 (2002), ≡ Clitocybe clavipes (Pers.) P. Kumm., Führ. Pilzk. (Zwickau): 124 (1871), ≡ Agaricus clavipes Pers., Syn. meth. fung. (Göttingen) 2: 353 (1801), [≡ Clavicybe clavipes (Pers.) Harmaja, Karstenia 42(2): 42 (2002), nom. illeg., Art. 52.1] Genus

Cantharocybe H.E. Bigelow & A.H. Sm., Mycologia 65(2): 486 (1973), emend. Ovrebo, Lodge & Aime, Mycologia 103(5): 1103 (2011), type species Cantharocybe gruberi (A.H. Sm.) H.E. Bigelow, Mycologia 65: 486 (1973), ≡ Clitocybe gruberi A.H. Sm., Mycologia 36(3): 245 (1944) In this paper, we attempt to establish correct, legitimate, validly published names that correspond to phylogenetic clades in Hygrophoraceae. In some cases, we note a lack of correspondence between clades and previously established classifications. We used a conservative approach, and changed the status of names or made new combinations for names used Belinostat nmr previously in other genera or at unassigned ranks, created new names for clades or changed the placement of named taxa

only when the phylogenetic evidence was strong, compelling, and consistent with morphology. This is the culmination of a large international collaborative effort spanning 20 years and reflects both the consensus as well as the differing opinions of the many coauthors. Our efforts began in 1988–1990 with two separate collaborations formed pheromone by the Vilgalys – Moncalvo lab, one with Lodge and Mizoribine Cantrell, and the other

with Kovalenko. The collaboration expanded greatly in 2002 with a Hygrophoraceae Systematics, Ecology and Conservation workshop at the International Mycological Congress in Oslo, Norway that was co-organized by Lodge, Cantrell, Boertmann, Courtecuisse and Kovalenko. The preliminary molecular phylogenies by Moncalvo that were presented in 2002 served as the basis for seeking specific additional sequences and for further phylogenetic analyses by Matheny. The complete data set analysis was presented at the Mycological Society of America meeting in Quebec, Canada (Lodge et al. 2006, web link), while a smaller, mostly independent data set was used in the Matheny et al.’s (2006) Assembling the Fungal Tree of Life (AFTOL) paper on Agaricales published in Mycologia. Padamsee and Aime were recruited for final analyses. Our four-gene region backbone analysis builds upon all of these previous iterations plus recent papers by Lawrey et al. (2009), Ovrebo et al. (2011) and the six-gene analysis by Binder et al. (2010).