Usnea in Europe http://www.ut.ee/ial5/k2n/
key/usnea_eu/index.html
  • Usnea rubicunda, branch
  • Usnea rubicunda, papillae
  • Usnea rubicunda, soralia
  • Usnea rubicunda, isidia
  • Usnea rubicunda, medulla