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Flavoparmelia caperata (L.) Hale
 
(= Parmelia caperata (L.) Ach.)


Thallus large, foliose, grey when dry, distinctively yellow-green when wet, surface typically with transverse wrinkles and laminar soralia; apothecia rare, with red-brown discs and sorediate, thalline margins. Widespread, conspicuous and locally common on trunks of deciduous trees and on other, generally base-poor, substrates, scarcer in central and northern Scotland.

Refs: Smith et al. (2009), 404; Purvis et al. (1992), 428 (as Parmelia caperata); Dobson (2005), 174-175 (photo); Dobson (2011), 181 (photo); Jahns (1983), 194-5 (photo, as Parmelia); Allen (2007), 37 & 40 (photos); Whelan (2011), 95 (photo); van Haluwyn et al. (2009), 106-7 (photos); van Herk & Aptroot (2004, 2013), 180-181 (photo); Holien & Tønsberg (2008), 51 (photo); Nordic Lichen Flora (2011) 4: 54, 155 (photo); Thor & Arvidsson (1999), 176, 267 (photo); Arup et al. (1997), 180 (photo); Stenroos et al. (2011), 220 (photo); Wirth (1995), 2: 639 (photo), 644 (as Parmelia); Wirth et al. (2004), 101 (photo, as Parmelia); Wirth, Hauck & Schulz (2013), 1: 20 & 480 (photos), 2: 806; Frahm et al. (2010), 105 (photo), 106; Valcárcel et al. (2003), 266-7 (photo, as Parmelia); Brodo et al. (2001), 317 (photo); Hinds & Hinds (2007), 250-1 (photo); Walewski (2007), 107 (photo); Lichen Atlas of the British Isles 1: 987 (1995) (as Parmelia).

Lichenicolous fungi on F. caperata include Abrothallus microspermus.

FGBI: http://fungi.myspecies.info/all-fungi/flavoparmelia-caperata

 
Flavoparmelia caperata
Flavoparmelia caperata
Flavoparmelia caperata
On a hybrid Willow (planted backcross of Salix x fragilis with S. alba) and on Ash (Fraxinus excelsior), Saltash, Cornwall, August 2008
 
Flavoparmelia caperata
Flavoparmelia caperata, closer view, showing wrinkles and laminar soralia
Dry material on Grey Sallow (Salix cinerea subsp. cinerea), Wicken Fen, Cambridgeshire, April 2007


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Uploaded April 2008, last updated January 2016