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Colonists of limestone dry stone walls In Winsley, West Wiltshire

Lichens

Lichenological studies (the study of the structure, life characteristics and species composition of lichens) have become increasingly popular in recent years. According to the researchers of the descriptive essay writing service, the relevance of these processes is that in the presence or absence of groups of species of flowering or spore plants, fungi, especially lichens with similar sensitivity to atmospheric pollution, the degree of anthropogenic burden on the ecosystem can be determined. Therefore, below we have placed images with the rarest types of lichens.


Dry stone wall with crustose lichens

 


A wall top covered in crustose lichens
 
Xanthoria parietina

 


Caloplaca flavescens
1
 
Caloplaca flavescens
2

 


Caloplaca aurantia
 
Caloplaca species

 


Lecanora campestris
1
 
Lecanora campestris
2

 


Cladonia pyxidata 1

 


Cladonia pyxidata
2
 
Caloplaca citrina

 


Verrucaria nigrescens
1
 
Verrucaria nigrescens
2

 


Verrucaria baldense
 
Aspicilia calcarea

 


Aspicilia contorta
1
 
Aspicilia contorta
2

 


Leproloma vouauxii
possibly
 
Collema
auriforme

 


Diploicia canescens
(but should be uniformly pale grey)
 
Acrocordia conoidea


Fungi


Galerina pumila


All pictures copyright John Presland