Lecanora campestris Lecanoraceae
Lecanora campestris

Growth type crustose.
Chemical results: K+ yellow, C-, P-/P+ v pale yellow, UV-/UV+ dull orange.

Common on (usually horizontal) basic to calcareous stones, walls, mortar, cement and asphalt. Rare on worked timber.
Associated lichenicolous fungi include Toninia subfuscae, Muellerella lichenicola and Lichenodiplis lecanorae

Greyish-white, warted or areolate thallus with a fimbriate white prothallus. Crowded apothecia, discs reddish-brown with smooth margins that become contorted with age. Small, irregular crystals are present in medulla and thalline margin. Simple spores, 10-15 x 6-9 Ám.

Similar: Lecanora horiza. K-, vertical gravestones, deciduous trees


Lecanora campestris

Lecanora campestris

Lecanora campestris

Lecanora campestris
Lecanora campestris
Dorset.

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