Peltigera hymenina (images of British lichens)

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); Wirth (1995), 2: 678, 685 (photo); van Herk & Aptroot (2004), 284-285 (photo); Vitikainen (1994) 47-50 (photo).

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

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Images of British Lichens