@ARTICLE{TreeBASE2Ref23850, author = {Pedro W. Crous and William Quaedvlieg and Karen Hansen and David L. Hawksworth and Johannes (Ewald) Zacharias Groenewald}, title = {Phacidium and Ceuthospora (Phacidiaceae) are congeneric: taxonomic and nomenclatural implications}, year = {2014}, keywords = {Bulgariaceae; coelomycete; discomycete; Gremmenia; Helotiales; LSU; Phacidiales; RPB2; systematics}, doi = {10.5598/imafungus.2014.05.02.02}, url = {http://www.imafungus.org/}, pmid = {}, journal = {IMA Fungus}, volume = {5}, number = {2}, pages = {173--193}, abstract = {The morphologically diverse genus Ceuthospora has traditionally been linked to Phacidium sexual morphs via association, though molecular or cultural data to confirm this relationship have been lacking. The aim of this study was thus to resolve the relationship of these two genera by generating nucleotide sequence data for three loci, ITS, LSU and RPB2. Based on these results, Ceuthospora is reduced to synonymy under the older generic name Phacidium. Phacidiaceae (currently Helotiales) is suggested to constitute a separate order, Phacidiales (Leotiomycetes), as sister to Helotiales, which is clearly paraphyletic. Phacidiaceae includes Bulgaria, and consequently the family Bulgariaceae becomes a synonym of Phacidiaceae. Several new combinations are introduced in Phacidium, along with two new species, P. pseudophacidioides, which occurs on Ilex and Chamaespartium in Europe, and Phacidium trichophori, which occurs on Trichophorum cespitosum subsp. germanicum in The Netherlands. The generic name Allantophomopsiella is introduced to accommodate A. pseudotsugae, a pathogen of conifers, while Gremmenia is resurrected to accommodate the snow-blight pathogens of conifers, G. abietis, G. infestans, and G. pini-cembrae.} }

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