TF0639 : Lichen, Gravestone at St Denys Church

taken 9 years ago, near to Aswarby, Lincolnshire, Great Britain

Lichen, Gravestone at St Denys Church
Lichen, Gravestone at St Denys Church
Lichens do not have roots, but absorb water and gases through their upper surface, and are therefore sensitive to atmospheric pollution. For this reason they are rarely found around cities and grow best on the wetter west side of the British Isles. Those on trees thrive best on the sunny, south-west aspects of trunks and branches. Disappearance of lichen species can be used to detect rising levels of air pollution.

There are three main types. The encrusting forms, including the bright orange/dark yellow 'Xanthoria' grow on roofs, walls, gravestones, signs and tree trunks. Leaf-like species develop flat lobes spreading over bark or stones, and shrubby forms which grow vertically from the ground or hang from trees. Few have common names.
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TF0639, 60 images   (more nearby search)
Photographer
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Date Taken
Saturday, 2 April, 2011   (more nearby)
Submitted
Tuesday, 26 April, 2011
Geographical Context
Religious sites 
Category
Lichens and mosses   (more nearby)
Subject Location
OSGB36: geotagged! TF 06722 39900 [1m precision]
WGS84: 52:56.7530N 0:24.7907W
Camera Location
OSGB36: geotagged! TF 06722 39900
View Direction
Southeast (about 135 degrees)
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Other Tags
Mosses and Lichen  Wall  Church 

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