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This foliose lichen can often reach up to 15cm across. In Foxglove Covert it is mainly found on smooth – barked trees.
Powdery Saucer Lichen - Ochrolechia androgyna
Grey Crottle - Parmelia saxatilis
This lichen can grow on stone walls, rocks and trees. In the past this species was used to produce reddish-brown dye. Notice the little projections, known as isidia at the centre of the thallus.
Powdered Crottle - Parmelia sulcata
The lobes of this lichen often have a fine white network on them, known as pseudocyphellae. It is very common on both trees and rocks.
Pearly Lichen or Sea-storm Lichen - Parmotrema perlatum
This lichen is often pearl grey or pale green and orbicular, with smooth lobes, edged with black hairs, known as cilia.
Dog Lichen - Peltigera canina
Membranous Dog-lichen - Peltigera membranacea
Only third record of this species in Yorkshire.
Field Dog Lichen - Peltigera rufescens
Bitter Wart Lichen - Pertusaria amara
This crustose lichen is grey/white. It has a bitter taste reminiscent of aspirin. In the past it was tried as a substitute for quinine.
Mealy Shadow Lichen - Phaeophyscia orbicularis
Hooded Rosette Lichen - Physcia adscendens
This lichen has colonised a conifer cone. Notice that some of the lobe ends on the right of the cone have become hood-shaped and inflated.
Blue-grey Lichen or Grey-warted Lichen - Physcia caesia
We found this lichen on top of a fence post, by a bridge in the conifer plantation: a common habitat for this lichen.