Peltigera didactyla (With.) J.R. Laundon
Lichenologist, 16: 217, 1984. Basionym: Lichen didactylus With. - Bot. Arrang. Veget. Gr. Brit., 1, 2: 718, 1776.
Synonyms: Lichen caninus var. pellucidus Weber; Lichen spurius Ach.; Peltidea canina var. spuria (Ach.) DC.; Peltigera canina var. crispata J. Kickx f.; Peltigera canina var. notata Th. Fr.; Peltigera canina var. pusilla Fr.; Peltigera canina var. spuria (Ach.) Schaer.; Peltigera erumpens (Taylor) Lange; Peltigera leptoderma auct.; Peltigera pellucida (Weber) Gyeln.; Peltigera pusilla (Fr.) Körb.; Peltigera rufescens var. spuria (Ach.) Gyeln.; Peltigera rufescens var. vulnerata Müll. Arg.; Peltigera sorediata (H. Olivier) Fink; Peltigera spuria (Ach.) DC.; Solorina sorediifera Nyl.
Description: Thallus foliose, broad-lobed, heteromerous, dorsiventral, greenish grey to brownish when dry, blackish green when wet, forming 1-3(-5) cm wide rosettes or consisting of a few scattered lobes only. Lobes 5-10 mm broad, 1-2 cm long, rounded, concave, ear-shaped and sorediate when young, later ascending, esorediate and bearing vertically arranged apothecia. Soralia maculiform, laminar, flat, tending to disappear in fertile specimens (leaving discoloured patches), at first orbicular and 1-3(-4) mm across, then becoming confluent, with grey to grey-brown soredia. Upper surface finely tomentose, at least in marginal parts and in young lobes; lower surface whitish, with narrow (0.4-0.7 mm broad) whitish to brownish veins and dense, up to 4 mm long rhizines becoming tufted and darkening. Upper cortex pseudoparenchymatous; medulla white, with loosely interwoven hyphae; lower cortex absent. Apothecia rare in sorediate specimens, common in esorediate ones, saddle-shaped, brown, located at the tip of short, vertically arranged lobes, with a minutely denticulate margin, 3-4(-6) mm wide. Paraphyses simple, distinctly thickened above. Asci fissitunicate, the thickened apex with a K/I+ blue ring, Peltigera-type. Ascospores 3-5(-7)-septate, hyaline to pale brown at maturity, fusiform, (36-)45-65(-80) x 3-5 μm. Pycnidia rare, dark, immersed. Conidia fusiform, 6-8 x 3-4 µm. Photobiont cyanobacterial (Nostoc, the cells not in long chains). Spot tests: cortex and medulla K-, C-, KC-, P- (soralia very rarely faintly C+ and KC+ pink). Chemistry: without lichen substances, or occasionally with low amounts of gyrophoric acid and methyl gyrophorate in the soralia.
Growth form: Foliose, broad lobed
Substrata: soil, terricolous mosses, and plant debris
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Pioneer species
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Montane belt: extremely rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: extremely rare
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Current prediction (1981-2010)
Future prediction (2071-2100) SSP 1-2.6
Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025
Nere Sorrentino
Spain
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (29377)
2001/12/10
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (29377)
2001/12/10
detail of soralia
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15055)
2003/03/03
lower surface
Antonio Valero; Owner: Antonio Valero
Spain; altitude: 1900 m.
Herbarium: Forum Natura Mediterraneo
2011
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Nere Sorrentino
Spain
Mark Rahill - CC BY-SA 4.0
USA
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Hôpital-Camfrout
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Nere Sorrentino
Spain
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Nere Sorrentino
Spain
Marko Doboš
980 33 Hajnáčka, Slovakia
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Hagendorf
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Mühlhausen
Triin Aimla; Owner: University of Tartu
Growth form: Foliose, broad lobed
Substrata: soil, terricolous mosses, and plant debris
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Pioneer species
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Montane belt: extremely rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: extremely rare
Padanian area: absent
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Current prediction (1981-2010)Future prediction (2071-2100) SSP 1-2.6Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025
Nere Sorrentino
Spain
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (29377)
2001/12/10
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (29377)
2001/12/10
detail of soralia
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15055)
2003/03/03
lower surface
Antonio Valero; Owner: Antonio Valero
Spain; altitude: 1900 m.
Herbarium: Forum Natura Mediterraneo
2011
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Felix Schumm – CC BY-SA 4.0
[13634], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, am Wegrand zwischen Gartenanlagen, 48°44.262' N, 9°38.505' E, 340 m, TK 7223. Leg. et det. Schumm 17.02.2008.
Nere Sorrentino
Spain
Mark Rahill - CC BY-SA 4.0
USA
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Hôpital-Camfrout
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=849&lang=en
France, Beaumont, Ardennes
Nere Sorrentino
Spain
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Nere Sorrentino
Spain
Marko Doboš
980 33 Hajnáčka, Slovakia
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Hagendorf
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Mühlhausen
