Rue Pere de Deken 19

Brussels, Belgium

Rue Pere de Deken 19

Brussels, Belgium

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Beker H.J.,Rue Pere de Deken 19 | Beker H.J.,Royal Holloway, University of London | Eberhardt U.,Staatliches Museum fur Naturkunde Stuttgart | Eberhardt U.,Ghent University | And 3 more authors.
Mycological Progress | Year: 2016

Hebeloma velutipes is one of the most common and abundant members of the ectomycorrhizal basidiomycete genus and H. sinapizans is one of its oldest and most commonly recorded species. Using large sample sizes, several loci and the analysis of types, we explored the taxonomy, species limits, distribution and the infrageneric classification of these two species and their relatives. By relying almost exclusively on sequenced material, we were able to attain a marked refinement of species descriptions. Phylogenetic results are congruent with respect to the delimitation of species, but suggest conflicting evolutionary histories of the species phylogeny. Using multi-species coalescent analysis, phylogenetic support for H. sects. Velutipes and Sinapizantia was assessed, finding clear support for H. sect. Sinapizantia but ambiguous results for H. sect. Velutipes. One species, H. subconcolor, previously accommodated in H. sect. Denudata, is placed in H. sect. Velutipes. Hebeloma bulbiferum, so far not considered in systematic treatments, is shown to belong to H. sect. Sinapizantia. Unexpectedly, H. velutipes turned out to be distinct from H. leucosarx. Hebeloma erebium comb. nov., H. celatum sp. nov. and H. quercetorum, formerly treated as a single species (H. quercetorum), are demonstrated to be three taxa that are clearly distinct in molecular terms, even though, morphologically, they can be deceptively similar; H. erebium and H. quercetorum are, moreover, geographically distinct. The morphological characters used to distinguish the ten recognised European species are outlined. Finally, a lectotype and an epitype are designated for H. sinapizans and a lectotype for H. quercetorum. © 2015, German Mycological Society and Springer-Verlag Berlin Heidelberg.


Eberhardt U.,Staatliches Museum fur Naturkunde Stuttgart | Eberhardt U.,Ghent University | Beker H.J.,Rue Pere de Deken 19 | Beker H.J.,Royal Holloway, University of London | And 2 more authors.
Fungal Biology | Year: 2016

Hebeloma section Denudata includes the majority of the taxa commonly referred to as the Hebeloma crustuliniforme complex. In a recent paper we described in detail H. subsection Denudata and fifteen European species recognised within this subsection, using morphological and molecular methods. In this paper we continue this work and describe in detail three additional subsections and several new species. Within H. subsection Hiemalia we recognise just one species, Hebeloma hiemale. Here we propose an epitype in order to unambiguously define this taxon. Nine species occurring in Europe are assigned to H. subsect. Clepsydroida, namely Hebeloma ammophilum, H. cavipes, H. fragilipes, H. ingratum, H. laetitiae, H. limbatum sp. nov., H. matritense sp. nov., H. pseudofragilipes sp. nov., and H. vaccinum. Finally, we introduce H. subsection Echinospora with three species: Hebeloma echinosporum sp. nov., H. populinum, and H. rostratum sp. nov. We provide descriptions of all three of these species in order to clarify the taxonomy of this section. We provide a key to H. sect. Denudata and the discussed subsections. For the majority of the taxa there is good overall consistency between morphological and phylogenetic delimitation and, where the information exists, thanks to Aanen and Kuyper's work, biological delimitation. © 2015 The British Mycological Society.


Eberhardt U.,Staatliches Museum fur Naturkunde Stuttgart | Eberhardt U.,Ghent University | Beker H.J.,Rue Pere de Deken 19 | Vesterholt J.,Natural History Museum of Denmark
Persoonia: Molecular Phylogeny and Evolution of Fungi | Year: 2015

Hebeloma subsection Denudata includes the type of H. section Denudata, Hebeloma crustuliniforme, as well as the majority of the taxa commonly included in the Hebeloma crustuliniforme complex. Complementing the work of D.K. Aanen and co-workers, and using refined morphological and molecular methods we were able to recognize further individual taxa within the section. Fifteen species occurring in Europe are assigned to H. subsect. Denudata. Of these, we describe eight species as new, namely H. aanenii, H. aurantioumbrinum, H. geminatum, H. louiseae, H. luteicystidiatum, H. pallidolabiatum, H. perexiguum and H. salicicola. Naucoria bellotiana, a species very similar to H. alpinum is recombined into Hebeloma. A key to Hebeloma subsect. Denudata is provided. We demonstrate that within this subsection there is good overall consistency between morphological, phylogenetic and biological species concepts. In contrast to current opinion, in this group there is little species overlap, particularly when also considering species frequencies, between arctic and alpine floras on one hand and temperate on the other. © 2015 Naturalis Biodiversity Center & Centraalbureau voor Schimmelcultures.


Vesterholt J.,Natural History Museum of Denmark | Eberhardt U.,Staatliches Museum fur Naturkunde Stuttgart | Beker H.J.,Rue Pere de Deken 19
Mycological Progress | Year: 2014

It is widely recognised that there is no consistent use of the name H. crustuliniforme. The name has been used to represent a number of different taxa and indeed taxa from sections of Hebeloma that are morphologically and molecularly well separated. The holotype of H. crustuliniforme is plate 308 Bulliard from 1787 and while it can be interpreted, no such interpretation can be without ambiguity. It is clear from existing literature that modern authors have applied numerous different interpretations to this name and no real consensus exists. Indeed it appears that at various times most of the medium to large species within both sections Denudata and Velutipes Vesterh. have been referred to as H. crustuliniforme. Within this paper an epitype is selected for H. crustuliniforme in order to give the taxon a precise meaning and a detailed species description is given. Molecular data combined with the results of intercompatibility tests of Aanen and Kuyper published earlier support the definition of H. crustuliniforme adopted in this paper as a distinct taxon and as a biological species. We strongly recommend that this taxon be referred to as Hebeloma crustuliniforme (Bull.) Quél. emend. Vesterh., U. Eberh. & Beker in order to emphasise that it is the specific taxon rather than the complex to which it is being referred. © 2013 German Mycological Society and Springer-Verlag Berlin Heidelberg.


Eberhardt U.,Fungal Biodiversity Center | Beker H.J.,Rue Pere de Deken 19 | Vesterholt J.,Natural History Museum of Denmark | Dukik K.,Fungal Biodiversity Center | And 3 more authors.
Fungal Diversity | Year: 2013

This paper addresses section Theobromina within the genus Hebeloma (Agaricales). We recognise seven European species within this section, three of which are described as new: Hebeloma alboerumpens, H. griseopruinatum and H. parvicystidiatum. The first two of these species appear to be ectomycorrhizal with Cistaceae: Cistus and Helianthemum. Hebeloma parvicystidiatum is more likely to be in mycorrhizal association with Quercus spp. We also provide a key to the European species within sect. Theobromina and an updated key of known Hebeloma associates of Cistus. Molecular analyses based on multiple loci further illustrate the distinctness of the newly described taxa and provide molecular evidence, supporting the morphological evidence, for the relationship that exists among species of this section. The ITS is the only one from the sequenced loci that, alongside with morphology, distinguishes among all of the species of sect. Theobromina. The section gains most of its molecular support from the MCM7 locus, followed by RPB2. © 2012 Mushroom Research Foundation.


PubMed | Rue Pere de Deken 19, Natural History Museum of Denmark and Ghent University
Type: | Journal: Persoonia | Year: 2016

Hebeloma subsection Denudata includes the type of H. section Denudata, Hebeloma crustuliniforme, as well as the majority of the taxa commonly included in the Hebeloma crustuliniforme complex. Complementing the work of D.K. Aanen and co-workers, and using refined morphological and molecular methods we were able to recognize further individual taxa within the section. Fifteen species occurring in Europe are assigned to H. subsect. Denudata. Of these, we describe eight species as new, namely H. aanenii, H. aurantioumbrinum, H. geminatum, H. louiseae, H. luteicystidiatum, H. pallidolabiatum, H. perexiguum and H. salicicola. Naucoria bellotiana, a species very similar to H. alpinum is recombined into Hebeloma. A key to Hebeloma subsect. Denudata is provided. We demonstrate that within this subsection there is good overall consistency between morphological, phylogenetic and biological species concepts. In contrast to current opinion, in this group there is little species overlap, particularly when also considering species frequencies, between arctic and alpine floras on one hand and temperate on the other.

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