An 11 year study was conducted to reevaluate the species of stipitate hydnums from the southern United States especially the Great Smoky Mountains and surrounding geography.The genera evaluated included Bankera herein...An 11 year study was conducted to reevaluate the species of stipitate hydnums from the southern United States especially the Great Smoky Mountains and surrounding geography.The genera evaluated included Bankera herein reduced to synonym with Phellodon,Hydnellum,Sarcodon,and Phellodon.Basidiomata of many stipitate hydnum species from this region were abundant but nitrogen depositions during the last 20 years have impacted their occurrences.Therefore it became critical to do a definitive study of these fungi using current taxonomic tools.Many species within Hydnellum and Phellodon have a indeterminate type growth often dependant on environmental conditions making discrimination between closely related species difficult without supportive molecular sequence data.Once sequence data(ITS)was obtained a phylogenetic analyzes were conducted and the sequences were compared to those in GenBank with particular attention to European data.A total of 41 distinct taxa were determined and many of those were confirmed based on morphological data.A specific new combination from Bankera fuligineoalbum to Phellodon fuligineoalbus is made herein.Futhermore,Phellodon brunneoolivaceus is described as new based on morphological and sequence data.展开更多
Pseudolagarobasidium(Polyporales,Basidiomycota)is a small,monophyletic genus of crustose,wood-inhabiting fungi with spines and a saprobic,endophytic,or parasitic habit.Seven species are accepted in the genus including...Pseudolagarobasidium(Polyporales,Basidiomycota)is a small,monophyletic genus of crustose,wood-inhabiting fungi with spines and a saprobic,endophytic,or parasitic habit.Seven species are accepted in the genus including two new species,P.belizense from Belize and P.pusillum from Australia.Sequence analysis of the internal transcribed spacer of the ribosomal RNA gene places P.belizense in a monophyletic clade with P.acaciicola and an undescribed foliar endophyte.New combinations proposed include P.modestum for Irpex modestus Berk.,P.pronum for Hydnum pronum Berk.&Broome which is an earlier name for P.calcareum,and P.venustum for Radulodon venustus Hjortstam&Ryvarden.Irpex colliculosum Berk.&Broome from Sri Lanka is conspecific with P.subvinosum.Two species,Sistotrema ochroleucum and Radulum concentricum are not accepted in Pseudolagarobasidium.Pseudolagarobasidium is compared with Radulodon and similar genera.A key to the species of Pseudolagarobasidium is provided.展开更多
文摘An 11 year study was conducted to reevaluate the species of stipitate hydnums from the southern United States especially the Great Smoky Mountains and surrounding geography.The genera evaluated included Bankera herein reduced to synonym with Phellodon,Hydnellum,Sarcodon,and Phellodon.Basidiomata of many stipitate hydnum species from this region were abundant but nitrogen depositions during the last 20 years have impacted their occurrences.Therefore it became critical to do a definitive study of these fungi using current taxonomic tools.Many species within Hydnellum and Phellodon have a indeterminate type growth often dependant on environmental conditions making discrimination between closely related species difficult without supportive molecular sequence data.Once sequence data(ITS)was obtained a phylogenetic analyzes were conducted and the sequences were compared to those in GenBank with particular attention to European data.A total of 41 distinct taxa were determined and many of those were confirmed based on morphological data.A specific new combination from Bankera fuligineoalbum to Phellodon fuligineoalbus is made herein.Futhermore,Phellodon brunneoolivaceus is described as new based on morphological and sequence data.
文摘Pseudolagarobasidium(Polyporales,Basidiomycota)is a small,monophyletic genus of crustose,wood-inhabiting fungi with spines and a saprobic,endophytic,or parasitic habit.Seven species are accepted in the genus including two new species,P.belizense from Belize and P.pusillum from Australia.Sequence analysis of the internal transcribed spacer of the ribosomal RNA gene places P.belizense in a monophyletic clade with P.acaciicola and an undescribed foliar endophyte.New combinations proposed include P.modestum for Irpex modestus Berk.,P.pronum for Hydnum pronum Berk.&Broome which is an earlier name for P.calcareum,and P.venustum for Radulodon venustus Hjortstam&Ryvarden.Irpex colliculosum Berk.&Broome from Sri Lanka is conspecific with P.subvinosum.Two species,Sistotrema ochroleucum and Radulum concentricum are not accepted in Pseudolagarobasidium.Pseudolagarobasidium is compared with Radulodon and similar genera.A key to the species of Pseudolagarobasidium is provided.
