Usnea in Europe  http://www.ut.ee/ial5/k2n/
key/usnea_eu/index.html
  • Usnea subfloridana – base
  • Usnea subfloridana – base
  • Usnea subfloridana – branch
  • Usnea subfloridana – isidia
  • Usnea subfloridana – soralia, papillae
  • Usnea subfloridana & Biatoropsis usnearum
  • Usnea subfloridana & Biatoropsis usnearum