Abstract
On the basis of detailed morphological and molecular investigation, eighteen new species of Inocybe (I. alberichiana, I. beatifica, I. bellidiana, I. clandestina, I. drenthensis, I. dryadiana, I. gaiana, I. ghibliana, I. grusiana, I. knautiana, I. lampetiana, I. oetziana, I. orionis, I. plurabellae, I. rivierana, I. scolopacis, I. sitibunda and I. tiburtina) are described. All of them are smooth-spored, and most of them are pruinose only in the apical part of the stipe. The new species are compared to 40 type specimens, all of which are described here and for several of which (partial) ITS sequences have been generated. For eight species, epi-, lecto- or neotypes were selected, among these are I. geophylla, I. glabripes and I. tigrina. Based on these studies, we suggest twelve synonymies, i.e. that I. clarkii is synonymous with I. sindonia, I. conformata with I. cincinnata, I. elegans with I. griseolilacina, I. fuscidula with I. glabripes, I. griseotarda with I. psammobrunnea, I. obscurella with I. obscuroides, I. obscuromellea with I. semifulva, I. patibilis and I. tigrinella with I. tigrina, I. petroselinolens with I. tenuicystidiata and I. rubidofracta with I. pseudorubens and I. subporospora is synonymized with I. tjallingiorum. All of the new species are supported by phylogenetic analyses. Among the previously described species accepted here, sixteen are represented by types in the phylogenetic analyses and ten by own collections morphologically corresponding to the type. In summary, we here verify or provide morphological concepts associated with molecular data for 44 smooth-spored species of Inocybe.
Highlights
Until recently, the family Inocybaceae consisted of the genera Inocybe (Fr.) Fr., Auritella Matheny & Bougher and Tubariomyces Esteve-Rav. & Matheny
All ITS and LSU sequences considered by Matheny et al (2020) when splitting what used to be Inocybe were included in the analyses
These results showed that the sequences of all taxa discussed here belonged to the genus Inocybe, and that all are members of the ‘smooth-spored temperate boreal clade’ ss
Summary
The family Inocybaceae consisted of the genera Inocybe (Fr.) Fr., Auritella Matheny & Bougher and Tubariomyces Esteve-Rav. & Matheny (see e.g. Latha et al 2016). The family Inocybaceae consisted of the genera Inocybe (Fr.) Fr., Auritella Matheny & Bougher and Tubariomyces Esteve-Rav. Latha et al 2016). The genus Inocybe was divided into the subgenera Mallocybe Kuyper, Inosperma Kühner and Inocybe 1986; Stangl 1989; Bon 1997, 1998), or according to Matheny and Kudzma (2019), in the five major clades, Inocybe, Inosperma, Mallocybe, Nothocybe and Pseudosperma. Matheny et al (2020) raised these five clades to the rank of genera, as Inocybe (Fr.) Fr., Inosperma (Kühner) Matheny & Esteve-Rav., Mallocybe (Kuyper) Matheny, Vizzini, EsteveRav., Nothocybe Matheny & K.P.D. Latha and Pseudosperma Matheny & Esteve-Rav. following Matheny et al (2020), the family Inocybaceae consists of seven genera
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