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Images of British Lichens

Lecanora campestris (Schaer.) Hue
subsp. campestris

This page is due for revision. It has been shown that the British concept of L. campestris includes L. horiza, as understood by continental lichenologists. True L. campestris is is a less attractive lichen with smaller apothecia and a fimbriate margin to the thallus. This page presently covers both species; the photographs show L. horiza.

Typically in circular colonies, thallus whitish to pale grey, warted and areolate, soralia lacking in this subspecies; apothecia usually abundant, red- to dark brown. Widespread and generally common on concrete and calcareous rocks.

Refs: Smith et al. (2009), 441; Purvis et al. (1992), 300; Dobson (2005), 216 (photo); Dobson (2011), 221 (photo); Allen (2007), 33 (photo); Wirth (1995), 1: 458; Wirth et al. (2004), 210 (photo); Wirth, Hauck & Schulz (2013), 1: 585, 591 (photo); van Herk & Aptroot (2004, 2013), 202-203 (photo); Valcárcel et al. (2003), 208-9 (photo).

Lichenicolous fungi on L. campestris include Vouauxiella verrucosa.

Lecanora campestris
Lecanora campestris, close-up
On concrete post, Wicken Fen, Cambridgeshire, April 2007

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© A.J. Silverside
Uploaded March 2008, last updated January 2016