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Classification

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If Alnicola, Flammula , Hebeloma, Phaeocollybia, and Psilocybe have been shown to lie within the Hymenogastraceae (based on molecular research published several years ago now), why are they not listed as such on Index Fungorum and MycoBank? Should we not wait for a formal transfer to this family before listing them as such here? Sasata (talk) 20:20, 30 November 2014 (UTC)[reply]

At what point do we make the distinction between Index Fungorum and MycoBank not being up to date, and the proposed taxonomical change simply not accepted by these authorities? What can we use as reliable source for the above genera being in the Hymenogastraceae? Matheny et al. (2006), which this article currently cites, is insufficient; they only included two species of Psilocybe in their cladistic analysis (fig. 1) (neither of which was the type species), and, more importantly, did not draw any conclusions as to familial placement in the text of the article. The second citation (Norvell 2010) does not even mention the family Hymenogastraceae. Where are the firm sources to support this taxonomic opinion? Sasata (talk) 07:31, 1 December 2014 (UTC)[reply]
Index Fungorum is definitely not up to date with Deconica being split. However, you make a good point about the possibility that the transfer of Psilocybe might just not have been recognized. I think whoever added the second source just added it to back Psilocybe sensu lato being split into Psilocybe and Deconica. Matheny et al. (2006) was published before the proposal to conserve P. semilanceata as the type species. It did include D. montana, which was then the type species. P. cyanescens is also pretty well known, and Moncalvo et al. (2002) found P. stuntzii to be closely related to P. semilanceata. However, Moncalvo et al. (2002) found weak support for their "psychedelia" clade being closer to Stropharia than Deconica. Interestingly, they also found "Psilocybe" subcoprophila to be closer to Phaeogalera stagnina than to Deconica or Psilocybe, and because of this proposed including Kuehneromyces, Phaeogalera and Hypholoma udum (now in Bogbodia) in their Psilocybe (Deconica). Borovička et al. (2011) found P. semilanceata to be within Psilocybe and closer to other members of Hymenogastraceae, other than Flammula alnicola, which was found to be closer to D. pseudobullacea and the rest of Strophariaceae sensu stricto. They also found Weraroa novae-zelandiae to be in Psilocybe ("psychedelia"). Borovička et al. (2014) found P. semilanceata firmly within Psilocybe, but didn't include any Deconica species as outgroups. It would have made sense to follow Moncalvo et al.' (2002)'s proposal and to transfer "psychedelia" to Weraroa, but unfortunately P. semilanceata was conserved as the type. I also don't know if anyone followed up on "p." subcoprophila. Ramirez-Cruz et al. (2013) found somewhat similar results to Matheny et al. (2006) with 28 species of Psilocybe in their cladogram but they also didn't include P. semilanceata. They also found Flammula, Alnicola and Hebeloma to be within Strophariaceae sensu stricto and weak support for Gymnopilus being in Hymenogastraceae. Some unpublished cladistic analyses I've seen have also found Panaeolus to be in Hymenogastraceae. Importantly, I overlooked this quote from Matheny et al. (2006): "Indeed Bayesian analyses of datasets II and III significantly support...the union of Hymenogastraceae and Strophariaceae s. str. Although not illustrated in our trees, the type of Hymenogaster (H. builliardii) is nested within the Hymenogastraceae clade (Peintner et al 2001). A recent 25S rRNA only analysis suggested a rather inclusive treatment of the Strophariaceae (Gulden et al 2005)". They actually proposed uniting Hymnegastraceae and Strophariaceae sensu stricto. Hymneogastraceae is still a valid clade, but it's either within Strophariaceae or synonymous with it depending on how it's defined. I was wrong and overzealous with the automatic taxoboxes and changing Stophariaceae to Hymenogastraceae. I'll add some of this information to this page, revert my edits and stick to more useful edits. Sorry about that. Fungal taxonomy is too much of a mess to try to tackle here. Dgrootmyers (talk) 22:17, 1 December 2014 (UTC)[reply]
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