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Images of British Lichens



Peltigera didactyla (With.) J.R. Laundon


A neat but inconspicuous species, with rosettes of relatively small, rounded to ovate lobes, grey-green above, drying ash grey, pubescent at least near the margins, young lobes with laminar soralia that later vanish, underside with pale to brownish veins and rhizines; apothecia brown, held on erect lobes. Throughout Britain on soil and bare ground.

Refs: Vitikainen (1994) 37-41 (photo); Smith et al. (2009), 668; Purvis et al. (1992), 445; Dobson (2005), 316 (photo); Dobson (2011), 317 (photo); Jahns (1983), 240-1 (photos, as P. spuria); van Herk & Aptroot (2004, 2013), 282-283 (photo); Aptroot et al. (2011), 136-7 (photos); Nordic Lichen Flora (2007) 3: 117, 194 (photo); Moberg & Holmåson (1984), 178 (photo, as P. spuria); Stenroos et al. (2011), 318 (photo); Wirth (1995), 2: 679-80, 683 (photo); Wirth, Hauck & Schulz (2013), 2: 825, 830 (photo); Hansen & Anderson (1995), 49 (photo); Brodo et al. (2001), 507-9 (photo); Hinds & Hinds (2007), 360-1 (photos); Walewski (2007), 34 (photo); McCune & Geiser (2009), 240 & 246 (photos).

 
Peltigera didactyla colony
Peltigera didactyla, showing soralia on thallus surfaces
Peltigera didactyla, with apothecia
Peltigera didactyla, with apothecia
Peltigera didactyla, drying thallus showing sparse pubescence
On soil, Paisley, Renfrewshire, September 2009


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Uploaded November 2009, last updated January 2014