Peltigera venosa (L.) Hoffm.
Descr. Adumbr. Pl. Crypt. Lich., 1: 31, 1789. Basionym: Lichen venosus L. - Sp. Pl., 2: 1148, 1753.
Synonyms: Peltidea venosa (L.) Ach.
Description: Thallus foliose, heteromerous and dorsiventral, loosely attached by a single, stout hapter, up to 2.5 cm in diam. Lobes flattened, smooth, rounded to fan-shaped, up to 25(-30) mm across and up to 1 mm thick. Upper surface smooth, somehow shiny, grey to grey green when dry (turning brown in the herbarium), bright green when wet. Lower surface erhizinate, pale, with a very evident network of black, flat, reticulate, villose veins, and granular-warty, dark cephalodia located on the veins. Upper cortex pseudoparenchymatous; medulla white; lower cortex absent. Apothecia frequent, 1-6 per lobe, rounded or oval, flat, up to 5(-6) mm across, dark brown to black, the lower side with a thick, dark, pseudoparenchymatous cortex. Paraphyses simple, distinctly thickened above. Asci 8-spored, fissitunicate, the thickened apex with a K/I+ blue ring, Peltigera-type. Ascospores usually 3-septate, hyaline to pale brown at maturity, acicular, thin-walled, (29-)35-43(-47) x 4-8 µm. Photobiont chlorococcoid (Coccomyxa), cephalodia with Nostoc. Spot tests: cortex and medulla K-, C-, KC-, P-, UV- or very rarely medulla faintly C+ and KC+ pink. Chemistry: medulla with tenuiorin, methyl gyrophorate and triterpenoids, sometimes with traces of gyrophoric acid.
Growth form: Foliose, broad lobed
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: rather rare
Montane belt: extremely rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
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
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5080)
2001/12/05
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34513)
2002/01/17
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28550)
2003/03/03
lower surface
Curtis Randall Björk, - CC BY-SA 4.0
Vancouver Island, British Columbia, Canada
2018
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Peltigera_veno.htm
France, avril 2011 - Olmetto Miluccia - Corse
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Peltigera_veno.htm
France, 7/9/2014 - Col du Mont Cenis - Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Peltigera_veno.htm
France, 7/9/2014 - Col du Mont Cenis - Savoie
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Frauenalpl
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Frauenalpl
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Wildfeldalm
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Wildfeldalm
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in op. Bolca
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in opp. Bolca (M. Purga) 1855
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in opp. Bolca (M. Purga) 1855
Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.
Triin Aimla; Owner: University of Tartu
Growth form: Foliose, broad lobed
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: rather rare
Montane belt: extremely rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
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
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5080)
2001/12/05
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34513)
2002/01/17
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28550)
2003/03/03
lower surface
Curtis Randall Björk, - CC BY-SA 4.0
Vancouver Island, British Columbia, Canada
2018
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Peltigera_veno.htm
France, avril 2011 - Olmetto Miluccia - Corse
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Peltigera_veno.htm
France, 7/9/2014 - Col du Mont Cenis - Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Peltigera_veno.htm
France, 7/9/2014 - Col du Mont Cenis - Savoie
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1034&lang=en
Italy, Valle d'Aosta
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Frauenalpl
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Frauenalpl
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Wildfeldalm
Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Wildfeldalm
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in op. Bolca
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in opp. Bolca (M. Purga) 1855
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in opp. Bolca (M. Purga) 1855
Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.
