Hypogymnia physodes (Hypogymnia physodes), on bark, used as an indicator for air quality, Germany, Lower Saxony

---

Size: 3780px × 5040px
Photo credit: © blickwinkel/Jagel / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., air, bark, barks, bioindication, branch, central, europe, european, foliose, format, german, germany, hypogymnia, indicator, jagel, lichen, lichens, parmeliaceae, physodes, plant, plants, pollution, quality, saxonian, saxony, so2, symbiosis, twig, vertical, west, western