TY - JOUR T1 - Phylogenetic relations of European shrubby taxa of the genus Usnea JF - Lichenologist Y1 - 2011 DO - 10.1017/S0024282911000375 A1 - Saag, L. A1 - Tõrra, T. A1 - Saag, A. A1 - Del-Prado, R. A1 - Randlane, T. SP - 427 EP - 444 VL - 43 JO - The Lichenologist ER -