TY - GEN AU - Aramburu, Ana AU - Casares, Manuel AU - García Sancho, Leopoldo AU - Pintado Valverde, Ana AU - Raggio Quílez, José AU - Sánchez Pescador, David PY - 2022 DO - 10.5209/mbot.77925 SN - 2603-9109 UR - https://hdl.handle.net/20.500.14352/132854 AB - Two strict polar-alpine Umbilicaria species (U. aprina and U. virginis) are reported growing together in Los Peñones de San Francisco. Other localities known on the highest summits of the Alps and Pyrenees are considered. We discussed the meaning of... LA - eng PB - Ediciones Complutense KW - Lichens KW - Polar-alpine KW - Biogeography KW - Umbilicaria KW - Sierra Nevada TI - Sierra Nevada (Spain), the southernmost European locality for the polar-alpine Umbilicaria aprina and U. virginis. TY - other ER -