TY - JOUR T1 - Re-evaluation of the morphological variability of Microglossum viride and M. griseoviride sp. nov. JF - Mycologia Y1 - 2014 DO - 10.3852/106.2.282 A1 - Kučera, Viktor A1 - Lizoň, Pavel A1 - Tomšovský, Michal A1 - Kučera, Jaromír A1 - Gaisler, Jan SP - 282 EP - 90 KW - Ascomycota KW - DNA, Fungal KW - DNA, Ribosomal KW - Molecular Sequence Data KW - Phylogeny KW - Soil Microbiology KW - Spores, Fungal AB -

Studies in Microglossum viride (Pers.) Gillet revealed that the name was used incorrectly for two similar but different taxa. Analyses of morphological, ecological and molecular (sequences of ITS and LSU region of rRNA gene) characters of type and voucher specimens of M. viride and related taxa resulted in delimitation and description of a new species, Microglossum griseoviride V. Kučera, Lizoň & M. Tomšovský. Lectotypes of Geoglossum viride Pers., and epitype of Geoglossum viride are designated. Species Microglossum minus Velen. and Microglossum lutescens Boud. are confirmed to be conspecific to M. viride.

VL - 106 IS - 2 ER - TY - JOUR T1 - Molecular phylogeny of Hypoxylon and closely related genera JF - Mycologia Y1 - 2005 A1 - Hsieh, H.M. A1 - Ju, Y.-M. A1 - Rogers, J.D. SP - 844 EP - 865 KW - Actins KW - DNA, Fungal KW - Molecular Sequence Data KW - Phylogeny KW - Sequence Analysis, DNA KW - Species Specificity KW - Tubulin KW - Xylariales AB -

Phylogenetic relationships were inferred among several xylariaceous genera with Nodulisporium or nodulisporium-like anamorphs based on the analyses of beta-tubulin and alpha-actin sequences. One hundred nine cultures and three specimens of 83 representatives of these four genera were included in the study. Biscogniauxia taxa formed a well supported clade that was basal to the other taxa, while taxa of Hypoxylon and Daldinia comprised a large monophyletic group that contained two subclades. The first subclade encompassed Hypoxylon sect. Annulata and is accepted here as the new genus Annulohypoxylon. The second subclade contained taxa of Hypoxylon sect. Hypoxylon and Daldinia. Hypoxylon is restricted to include only those taxa in sect. Hypoxylon. Thirty-three epithets are made in Annulohypoxylon. Hypoxylon cohaerens var. microsporum is raised to the species level and accepted as A. minutellum. Hypoxylon polyporoideum is recognized as distinct from H. crocopeplum. Hypoxylon placentiforme is accepted as Daldinia placentiformis.

VL - 97 ER - TY - JOUR T1 - Molecular evidence supports the distinction between Xanthoria parietina and X. aureola (Teloschistaceae, lichenized Ascomycota). JF - Mycological Research Y1 - 2005 DO - https://doi.org/10.1017/S0953756204001790 A1 - Lindblom, L. A1 - Ekman, S. SP - 187 EP - 199 KW - Ascomycota KW - Base Sequence KW - DNA, Fungal KW - DNA, Ribosomal KW - DNA, Ribosomal Spacer KW - Haplotypes KW - Lichens KW - Molecular Sequence Data KW - Mycological Typing Techniques KW - Phylogeny KW - Recombination, Genetic KW - Sequence Analysis, DNA KW - Spores, Fungal AB -

This study aims to clarify taxonomic relationships within the current concept of Xanthoria parietina in northern Europe. For comparison, X. calcicola was also included in the study. Morphological as well as molecular data were utilized. Morphology indicated the presence of three species, Xanthoria parietina, X. calcicola, and X. aureola, the latter of which is resurrected here from synonymy. The most important separating characters involve colour and thickness of the thallus, lobe width, morphology of laminar structures, and the texture of the upper surface. X. aureola, as recognized here, mostly occurs on seashore rocks. Part of the IGS region as well as the complete ITS were sequenced in 70 individual thalli representing ten geographical regions in Europe. In total, 19 different IGS haplotypes and 20 different ITS haplotypes were present in the data set. Owing to indications of possible recombination between the IGS and the ITS, the two data sets were analyzed separately. Haplotype networks were estimated, both of which indicate that X. parietina is distinct from X. aureola and X. calcicola. In our sample, the two latter do not share haplotypes, but are only separated by a few mutational steps.

VL - 109 ER -