Current Name:Usnea quasirigida Lendemer & I.I. Tav., Proc. Acad. nat. Sci. Philad. 153: 179 (2003)
Synonymy:Usnea florida var. rigida Ach., Lich. Univ.: 621 (1810)Usnea rigida (Ach.) Röhl. ex Zahlbr., Cat. Lich. Univers. 6: 571 (1930)
Position in classification:Parmeliaceae, Lecanorales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi
Synonymy Contributor(s): Kew Mycology (2017)