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Abstract
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.
Acknowledgments
We thank Drahoš Blanár for help in researching the type locality of Microglossum griseoviride (Revúca), Václav Kautman for assistance in the field, Stanislav Glejdura, Felix Hampe, Jorge Hernanz, Soňa Jančovičová, Turid Kristiansen, Vladimír Kunca, Igor Hlavatý, Tereza Tejklová and others for providing the specimens, Gerard Thijsse and the staff of the herbarium at Leiden for the opportunity to study Persoon’s herbarium. The study was supported by these grants: VEGA 02/0088/13, VEGA 02/0150/12 to V. Kučera and P. Lizoň ; Ministry of Education, Youth, and sports of the Czech Republic, project No. 7AMB12SK082 and European Social Fund and the state budget of the Czech Republic, project Indicators of Trees Vitality Reg. No. CZ.1.07/2.3.00/20.0265 to M. Tomšovský, and Ministry of Agriculture of the Czech Republic MZE 0002700604 to J. Gaisler.