Appendix 1.

Voucher information for taxa in this study. Voucher information and algal strain codes were deposited at the Department of Biology, University of Naples Federico II (Italy). Information presented: taxon, geographical locality with GPS coordinates, voucher information–herbarium, and/or strain accession code–Algal Strains Collection.

Kochia saxicola, Capri (southern Italy) (40°33′30.40″N 14°14′05.40″E), Vallariello-KS11-NAP;

Pancratium maritimum, Botanical Garden of Naples (southern Italy) (40°51′39.74″N 14°15′43.31″E), Vallariello-PMO-NAP (SPB);

Galdieria sulphuraria, Landmannalaugar (Iceland) (63°59′23.34″N 19°03′32.58″W), Ciniglia-ACUF 420.