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Species of Squamanita. A. S. magnisquarrulosa (holotype, PDD 80810). B. S. citricolor (TH10986). C. S. volvatiparva (holotype, TMI 26381). D-E. S. citricolor (THDJA128; photos: Todd Elliott). F. S. magnisquarrulosa (holotype, PDD 80810). G. S. sumstinei (holotype, FH 995896; photo: Rick Van de Poll). Bars = 1 cm.
Source publication
Nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS barcode) sequence data from eight type specimens of previously described Squamanita species were obtained. Phylogenetic analysis of ITS and partial nuc 28S rDNA data revealed Squamanita as paraphyletic splitting into two monophyletic groups, which we recognize as the genera Squamanita...
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Citations
... Squamanita is a genus in the family Squamanitaceae (Vizzini et al. 2019;Kalichman et al. 2020;Liu et al. 2021), which may represent one of the most unique basidiomycetes fungi in the world as nearly all the species are parasitic on other living fungi. Saar et al. (2022) split Squamanita into two monophyletic groups, viz. Squamanita and Dissoderma (A.H. ...
... Squamanita imbachii has been documented in Europe and North America (Liu et al. 2021;Saar et al. 2022). Liu et al. (2021) sequenced a specimen (HKAS107325A) collected from Liguria, Italy, resulting in the generation of four genes (ITS: MW258856; LSU: MW258908; TEF1-a: MW324508; 18S: MW258935 & MW258886) and noted that this species acts as a parasite on Amanita excelsa species complex (Fr.) ...
... 1866. Saar et al. (2022) confirmed the identity of HKAS107325A as S. imbachii. In this study, we used this dried specimen archived in the Herbarium of Cryptogams, Kunming Institute of Botany, Chinese Academy of Sciences (http://www.kib.ac.cn/) (Figure 1). ...
The complete mitochondrial genome of Squamanita imbachii I. Saar, is unveiled in this research for the first time. It covers 76,643 base pairs (bp) and exhibits a guanine-cytosine (GC) content of 23%. The genome includes 14 conserved protein-coding genes, 1 DNA polymerase gene, 2 ribosomal RNA gene (RNS and RNL), 25 transfer RNA (tRNA) genes and 18 open reading frames (ORFs). Phylogenetic analysis, utilizing a mitochondrial gene dataset from 15 taxa across seven families within the Agaricales order, was conducted employing the maximum-likelihood (ML) approach. This analysis identified a close phylogenetic relationship between S. imbachii and Floccularia luteovirens (Alb. & Schwein.) Pouzar 1957, positioning both within the Squamanitaceae family.
... Agaricanae and "Boletanae ad int." (composed of Boletales and Atheliales; Agerer 2018) form the subclass Agaricomycetidae of the class Agaricomycetes. Jaapiales was proposed in Agaricomycetidae based on multigene data (Binder et al. 2010), but later placed outside it by Li et al. (2021) Notes: Saprotrophic (Singer 1986), some associated with rodent latrines (ammonia-fungi or post-putrefaction fungi, Hymenogastraceae, Psathyrellaceae, Sagara 1975, Sagara et al. 2000, Suzuki 2009), ECM (ectomycorrhizal) forming (Cortinariaceae, Hydnangiaceae, Hymenogastraceae and Inocybaceae; Rinaldi et al. 2008, Tedersoo et al. 2010, Tedersoo & Smith 2013, Soop et al. 2016, arbutoid mycorrhizas forming (Smith & Read 2008, Kühdorf et al. 2016, leaf cutting ants associated (Leucoagaricus, Fisher et al. 1994, Araújo et al. 2022, Urrea-Valencia et al. 2023, nematode hunters (nematophagy, Vizzini 2008) or mycoparasitic (Squamanita, Dissoderma, Psathyrella epimyces; Redhead et al. 1994, Saar et al. 2022. A previously unknown ectomycorrhizal relationship between poplar roots and Bovista limosa (Agaricaceae) was recently described by Xiao et al. (2023a). ...
The phylogenetic position of several clitocyboid/pleurotoid/tricholomatoid genera previously considered incertae sedis is here resolved using an updated 6-gene dataset of Agaricales including newly sequenced lineages and more complete data from those already analyzed before. Results allowed to infer new phylogenetic relationships, and propose taxonomic novelties to accommodate them, including up to ten new families and a new suborder. Giacomia (for which a new species from China is here described) forms a monophyletic clade with Melanoleuca (Melanoleucaceae) nested inside suborder Pluteineae, together with the families Pluteaceae, Amanitaceae (including Leucocortinarius), Limnoperdaceae and Volvariellaceae. The recently described family Asproinocybaceae is shown to be a later synonym of Lyophyllaceae (which includes also Omphaliaster and Trichocybe) within suborder Tricholomatineae. The families Biannulariaceae, Callistosporiaceae, Clitocybaceae, Fayodiaceae, Macrocystidiaceae (which includes Pseudoclitopilus), Entolomataceae, Pseudoclitocybaceae (which includes Aspropaxillus), Omphalinaceae (Infundibulicybe and Omphalina) and the new families Paralepistaceae and Pseudoomphalinaceae belong also to Tricholomatineae. The delimitation of the suborder Pleurotineae (= Schizophyllineae) is discussed and revised, accepting five distinct families within it, viz. Pleurotaceae, Cyphellopsidaceae, Fistulinaceae, Resupinataceae and Schizophyllaceae. The recently proposed suborder Phyllotopsidineae (= Sarcomyxineae) is found to encompass the families Aphroditeolaceae, Pterulaceae, Phyllotopsidaceae, Radulomycetaceae, Sarcomyxaceae (which includes Tectella), and Stephanosporaceae, all of them unrelated to Pleurotaceae (suborder Pleurotineae) or Typhulaceae (suborder Typhulineae). The new family Xeromphalinaceae, encompassing the genera Xeromphalina and Heimiomyces, is proposed within Marasmiineae. The suborder Hygrophorineae is here reorganized into the families Hygrophoraceae, Cantharellulaceae, Cuphophyllaceae, Hygrocybaceae and Lichenomphaliaceae, to homogenize the taxonomic rank of the main clades inside all suborders of Agaricales. Finally, the genus Hygrophorocybe is shown to represent a distinct clade inside Cuphophyllaceae, and the new combination H. carolinensis is proposed.
... (e.g. Michael et Hennig 1964, Wasser 1993, Henrici 2013, Lćssře et Petersen 2019, Liu et al. 2021, Saar et al. 2022, which are thermophilous, calciphilous and mycorrhizal with various deciduous trees. Although we have recorded the occurrence of both these species in the forest near the settlement of Kalešov, only A. strobiliformis grew directly at the site of S. schreieri. ...
... Based on phylogenetic analysis of ITS and partial nuc 28S rDNA data, Saar et al. (2022) revealed that the genus Squamanita in its previous concept was polyphyletic, splitting into two monophyletic groups, which they recognise as the genera Squamanita Imbach (s.str.) with type species S. schreieri, and Dissoderma (A.H. Sm. et Singer) Singer with type species D. paradoxum (A.H. ...
