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Ossicaulis lachnopus (Agaricales, Lyophyllaceae), a species similar to O. lignatilis, is verified by morphological and molecular methods

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Abstract

Identity of Ossicaulis lachnopus and O. lignatilis was studied using both classical and molecular methods. While O. lignatilis is a well-known species, O. lachnopus is almost unknown, having been resurrected to modern mycology by M. Contu in 2000. Based on collections from six European countries, both classical and molecular methods independently proved that the species really represent two separate entities. They form two well-supported clades that correlate to morphologically separable groups. The most important distinguishing characters are the size of spores, especially their length, and a pileus colour. O. lachnopus has small spores and a grey or beige-grey tinged pileus, whereas O. lignatilis has larger spores and a whitish to cream pileus, with a slight beige-greyish tinge at most. In this paper, we discuss taxonomy, ecology and distribution of both species and propose a preliminary key for their identification.

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Acknowledgements

We thank Marco Contu and Scott A. Redhead for help with literature, and Giovanni Robich for information on type specimens. J. Holec's work was financially supported by the Ministry of Culture of the Czech Republic (project MK00002327201). M. Kolařík was sponsored by the grant MSM 6007665801.

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Authors and Affiliations

  1. Mycological Department, National Museum, Cirkusová 1740, CZ-193 00, Praha 9, Czech Republic

    Jan Holec

  2. Institute of Microbiology ASCR, Vídeňská 1083, CZ-142 20, Praha 4, Czech Republic

    Miroslav Kolařík

  3. Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Praha 2, Czech Republic

    Miroslav Kolařík

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  1. Jan Holec
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  2. Miroslav Kolařík
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Correspondence to Jan Holec.

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Holec, J., Kolařík, M. Ossicaulis lachnopus (Agaricales, Lyophyllaceae), a species similar to O. lignatilis, is verified by morphological and molecular methods. Mycol Progress 12, 589–597 (2013). https://doi.org/10.1007/s11557-012-0866-2

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