Peltigera malacea (images of British lichens)

Upper surface of fresh thallus a rich, dark green, tan-brown with exposure and brown to almost black when dry, lacking cephalopodia, very minutely pubescent at least near the margins, but with this pubescence not or scarcely apparent under field conditions; lower surface pale- to brown-tomentose with few or no veins, rhizines sparse; apothecia rare. Scottish Highlands, very rare and seen recently only on a few acid dune systems in the north-east.

Refs: Vitikainen (1994) 57-61 (photo); Smith et al. (2009), 670; Purvis et al. (1992), 445; Jahns (1983), 238-239 (photo); Nordic Lichen Flora (2007) 3: 122, 196 (photo); Moberg & Holmåson (1984), 176 (photo, shows dry state well); Wirth (1995), 2: 679, 687 (photo); Hansen & Anderson (1995), 50 (photo); Hinds & Hinds (2007), 367 (photo); Brodo et al. (2001), 513, 514 (photo); McCune & Geiser (2009), 241 & 250 (photos).

lastdragon.org

Images of British Lichens