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Title:Hidden diversity uncovered in Hygrophorus sect. Aurei (Hygrophoraceae), including the Mediterranean H. meridionalis and the North American H. boyeri, spp. nov. 
Authors:Moreau, PA; Bellanger, JM; Lebeuf, R; Athanassiou, Z; Athanasiades, A; Lambert, H; Schwarz, C; Larsson, E; Loizides, M 
Year:2018 
Journal:
 
Volume:122 
Issue:8 
First page:817 
Last page:836 
Publisher:British Mycological Society 
Keywords:Hygrophorus aureus, Hygrophorus fuligineus, Hygrophorus fuscoalbus, Hygrophorus hypothejus, waxcap, woodwax 
Abstract:For many years, the binomial Hygrophorus hypothejus was widely applied to collections from various geographical regions in different continents, assuming a circum-boreal and circum-mediterranean distribution for this species. This hypothesis, however, had never been put to the test. To assess the diversity and species-limits within this complex of yellow-coloured waxcaps, a phylogenetic, morphological and taxonomical investigation into Hygrophorus sect. Aurei and similar species in sect. Olivaceoumbrini was carried out, including material of pan European origin, as well as the east and west coasts of North America. Following sequencing of the ITS rDNA locus, nine lineages are confirmed in sect. Aurei, most of them strongly supported phylogenetically and highly continentalised. Of those, two are new to science and named here Hygrophorus boyeri sp. nov., from Pinus banksiana and P. rigida forests in eastern North America and from P. muricata and P. contorta forests in western North America, and Hygrophorus meridionalis sp. nov., from Pinus brutia and P. halepensis forests in the island of Cyprus and mainland Greece. Hygrophorus hypothejus is here resolved as a strictly European species, with H. siccipes as its North American vicariant. The combination H. hypothejus f. aureus is introduced for collections of H. hypothejus lacking brown pigmentation, previously regarded as a distinct species or variant. The placement of H. fuligineus in sect. Aurei is phylogenetically confirmed and detailed comparisons between morphologically similar and phylogenetically affiliated taxa in sect. Aurei and sect. Olivaceoumbrini are included. The chronic confusion associated with H. fuscoalbus, a highly controversial taxon described from Germany nearly two centuries ago and variously interpreted since, is discussed, concluding that this name is too ambiguous to be applied to any currently recognized species. 
Document type:Article 
Edition:? 
Associated taxa:
 
Summary:Moreau, PA; Bellanger, JM; Lebeuf, R; Athanassiou, Z; Athanasiades, A; Lambert, H; Schwarz, C; Larsson, E; Loizides, M. 2018. Hidden diversity uncovered in Hygrophorus sect. Aurei (Hygrophoraceae), including the Mediterranean H. meridionalis and the North American H. boyeri, spp. nov. Fungal Biology. 122(8):817-836 
Research group:
Boekhout ?
Collemare ?
Crous ?
de Vries ?
 
Hagen ?
Houbraken ?
Robert ?
Verkleij ?