Over 100 specimens deposited under Melastiza in the PRM herbarium (Prague, Czech Republic) were revised. They were identified as M. carbonicola, M. cornubiensis, M. flavorubens and M. contorta (84 specimens), remained unidentified (1 specimen) or were included in Scutellinia (23 specimens). Most of the previously published differences in hair and ascospore characters between M. carbonicola and M. cornubiensis were confirmed based on the studied material. Lists of revised specimens with collection data are given. The lists show that some differences in distribution between M. carbonicola and M. cornubiensis probably exist, but it is also taken into account that these are finds by various collectors who may prefer visiting different habitats. A final decision on the identity of M. carbonicola and M. cornubiensis is not made due to a lack of molecular data.
Šandová M. (2019): Revision of specimens of Melastiza deposited in the PRM herbarium. – Czech Mycology 71(2): 205–217.
