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Images of British Lichens



Peltigera hymenina (Ach.) Delise ex Duby
 
(= P. lactucifolia (With.) Laundon; "P. polydactyla" auct.)


Upper surface of fresh thallus olive green to brown- or blue-grey, much darker when dry, smooth, slightly lustrous; lower surface brownish white, with ochre veins and pale, unbranched (though often frayed) rhizines; apothecia elongated, erect, on short extensions from the lobe margins. On tree-bases, rocks and in heathy turf, widespread, common in the north and west.

Refs: Smith et al. (2009), 669; Purvis et al. (1992), 445 (as P. lactucifolia); Dobson (2005), 317 (photo); Dobson (2011), 318 (photo); Allen (2007), 10 (photo); Whelan (2011), 125 (photo); Nordic Lichen Flora (2007) 3: 120, 194 (photo); Holien & Tønsberg (2008), 124 (photo); Stenroos et al. (2011), 323 (photo); Wirth (1995), 2: 678, 685 (photo); van Herk & Aptroot (2004, 2013), 284-285 (photo); Aptroot et al. (2011), 140-1 (photos); Wirth, Hauck & Schulz (2013), 2: 826, 831 (photo); Vitikainen (1994) 47-50 (photo).

Host to a number of lichenicolous fungi, including Arrhenia peltigerina, Arthonia fuscopurpurea.

 
Peltigera hymenina
Heathy roadbank, Strathardle, Perthshire, April 2003
 
Peltigera hymenina
In coastal turf, Bettyhill, West Sutherland, August 2006
 
Peltigera hymenina with abundant apothecia
On mossy boulder in rough grass, Finlaystone, Renfrewshire, February 2009


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© A.J. Silverside
Uploaded May 2008, last updated January 2014 (first hosted at www-biol.paisley.ac.uk, May 2007)