Lichen on ash bark

Lichen on ash bark

C010/6334 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.4MB

Downloadable file size: 5.7MB

Price image Pricing

Please login to use the price calculator


Caption: Lichen on ash bark. Close-up of the bark of a common ash tree (Fraxinus excelsior), showing the lichen community growing on it. The bark of the ash tree is both smoother and of a higher pH (less acidic) than most other common forest trees. This encourages the growth of small crustose lichens. The high pH of the bark also buffers the surface from acidifying gases such as sulphur dioxide and nitrogen oxides, major components of air pollution. Species present here include Arthonia (black apothecia) and Lecanora (pale orange apothecia). A knot in the bark is at top. Photographed in Cumbria, UK.

Release details: Model release not required. Property release not required.

Keywords: acidic bark, air pollution, apothecia, arthonia, bark, biological, biology, botanical, botany, britain, british, close-up, common ash, countryside, crustose lichen, cumbria, detail, england, english, europe, european, flora, fraxinus exclesior, knot, knotted wood, lecanora, lichen, lichend, low ph, nature, nitrogen oxides, plant, rural, sulfur, sulphur dioxide, tree, uk, united kingdom

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.