Villa, Sara https://orcid.org/0000-0002-9238-9839
Marchesini, Alexis https://orcid.org/0000-0001-9487-5737
Torre, Sara https://orcid.org/0000-0002-3496-4057
Pepori, Alessia L. https://orcid.org/0000-0002-9184-7965
Pecori, Francesco https://orcid.org/0000-0002-6577-7190
Ghelardini, Luisa https://orcid.org/0000-0002-3180-4226
Selvaggi, Alberto https://orcid.org/0000-0003-2483-4790
Sebastiani, Federico https://orcid.org/0000-0003-4676-7381
Santini, Alberto https://orcid.org/0000-0002-7955-9207
Funding for this research was provided by:
Ministero dell'Università e della Ricerca, PRIN-2022 (2022SFNMYC)
Article History
Received: 20 May 2025
Accepted: 1 December 2025
First Online: 12 December 2025
Declarations
:
: Leaf material was collected non-destructively from wild Ulmus glabra individuals in accordance with relevant national legislation in Italy, France and Bosnia-Herzegovina. Sampling was conducted in public forests or natural areas, as no specific permit was required for U. glabra , which is not a protected species, and only small, non-destructive leaf fragments were collected. Permission from the landowner was obtained in cases of access to private land.
: All the material used to build maps is copyright free or reference is indicated in caption.
: The authors declare no competing interests.