Images of British Lichens
Lecanora sulphurea (Hoffm.) Ach.
Thallus a thick, cracked-areolate, greenish- or grey-yellow to yellow-grey crust, soredia absent; apothecia initially immersed, irregular, discs variable in colour, yellowish to black, grey-pruinose. Widespread on siliceous rocks and stonework.
Refs: Smith et al. (2009), 500; Purvis et al. (1992), 317; Dobson (2005), 232 (photo); Dobson (2011), 234-5 (photo, atypical); Whelan (2011), 106 (photo); van Herk & Aptroot (2004), 222-3 (photo); Wirth (1995), 1: 454, 491 (photo); Wirth et al. (2004), 212 (photo, greenish variant); Wirth, Hauck & Schulz (2013), 1: 577, 578 (photo, poor colour); Valcárcel et al. (2003), 220-1 (photo); Puntillo (1996), plate 22 (photo).
Digital photo and printing technology commonly renders this species more grey than it is in real life.
|On stonework of old bridge wall (co-dominant with Ochrolechia parella), Cuthill, Invernessshire, July 2008|
(the photographs have under-represented the yellow colour in this species)
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Uploaded November 2008, last updated September 2013