Arthonia lapidicola

Crustose Lichen

Arthonia lapidicola, Crustose Lichen. A small, dull greenish grey lichen commomnly found on well lit hard limestone. Apothecia poorly formed, without distinct margins.


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Arthonia lapidicola, Crustose Lichen
Thallus
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Arthonia lapidicola, Crustose Lichen
Thallus
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Arthonia lapidicola, Crustose Lichen
Arthonia with Caloplaca
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Arthonia lapidicola, Crustose Lichen
Thallus squash
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Arthonia lapidicola, Crustose Lichen
Apothecia squash
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Arthonia lapidicola, Crustose Lichen
Arthonia with Caloplaca

Photograph detail


Slide 1: Arthonia lapidicola, Crustose Lichen. Thallus, showing poorly defined apothecia on hard limestone. Collected from Redmire Pastures Road. December.


Slide 2: Arthonia lapidicola, Crustose Lichen. Thallus, showing poorly defined apothecia on hard limestone. Collected from Redmire Pastures Road. December.


Slide 3: Arthonia lapidicola, Crustose Lichen. Thallus, growing next to Caloplaca flavescens. Collected from Redmire Pastures Road. December.


Slide 4: Arthonia lapidicola, Crustose Lichen. Thallus squash, showing cells of algae and cyanobacteria, with some clear calcite crystals. Photographed at x400, brightfield illumination. Collected from Redmire Pastures Road. December.


Slide 5: Arthonia lapidicola, Crustose Lichen. Apothecium squash, showing spore formation. Photographed at x400, brightfield illumination. Collected from Redmire Pastures Road. December.


Slide 6: Arthonia lapidicola, Crustose Lichen. Thallus, growing around Caloplaca flavescens. Limestone, drystone wall. Redmire Pastures Road. December.