Usnea in Europe http://www.ut.ee/ial5/k2n/
key/usnea_eu/index.html
  • Usnea esperantiana, thallus
  • Usnea esperantiana, base
  • Usnea esperantiana, base
  • Usnea esperantiana, branch
  • Usnea esperantiana, secondary branch
  • Usnea esperantiana, soralia
  • Usnea esperantiana, soralia