Previous page Next page
 
lastdragon.org

Images of British Lichens



Lecanora chlarotera Nyl.


Thallus crustose, cream to pale grey, almost smooth to strongly warted (like lumpy porridge), often forming distinct, rounded colonies but not bounded by a prothallus; apothecia with thick, thalline, crenulate or contorted margins, discs buff to chestnut brown, not or only slightly pruinose; the commonest of a complex of similar species that require chemical tests and microscopic examination of cross-sections of the hymenium and apothecial margins for certain identification. Widespread and common on smooth, nutrient-rich bark, a characteristic early coloniser of young, planted, semi-urban trees, as in supermarket car-parks.

Refs: Smith et al. (2009), 480; Purvis et al. (1992), 301; Dobson (2005), 217 (photo); Dobson (2011), 223 (photo); Fox et al. (2003), plate 7 (photo); Jahns (1983), 206-7 (photo); Whelan (2011), 104 (photo); van Haluwyn et al. (2009), 212-3 (photo); van Herk & Aptroot (2004, 2013), 204-205 (photo); Valcárcel et al. (2003), 210-11 (photo); Wirth (1995), 1: 464, 469 (photo); Wirth et al. (2004), 292 (photo); Wirth, Hauck & Schulz (2013), 1: 569, 593 (photo); Frahm et al. (2010), 40-41 (photo); ? Moberg & Holmåson (1984), 115 (photo, as "L. subfuscata"); Holien & Tønsberg (2008), 165 (photo); Thomson (1997), 273.

Frequently parasitised by Vouauxiella species: V. lichenicola and, less often, V. verrucosa.

 
Lecanora chlarotera
Lecanora chlarotera
Lecanora chlarotera, close-up
On Ash (Fraxinus excelsior), Chatelherault, Lanarkshire, March 2008


Previous page   Next page



Lichens HOME PAGE | Index of Species | Conditions of Use and e-mail contact | References | Site Home Page


© A.J. Silverside
Uploaded November 2008, last updated December 2013