Bystrek, J/ Gorzynska, K/ Sawa, K 1981: Gatunki Usnea Wigg. emend Ach. w makroregionie lubelskim. - Annales Universitatis Mariae Curie-Sklodowska, Sectio C36: 135-145. [RLL List # 119-19 / Rec.# 2775] Keywords: USNEA/ POLAND/ NEW TAXA/ EUROPE
Abstract: [A study of Usnea in the region around Lublin yielded 30 species including U. perplectans and U. carpatica as new records for the region. New: Usnea wasmuthii Ras. fo. negative Bystr., fo nov.]