Peltigera extenuata (Vain.) Lojka
Lichenoth. Univers., Fasc. 5: nr. 222, 1886. Basionym: Peltigera canina var. extenuata Nyl. ex Vain. - Meddeland. Soc. Fauna Fl. Fenn., 2: 49, 1878.
Synonyms: Peltigera didactyla var. extenuata (Nyl. ex Vain.) Goffinet & Hastings
Description: Thallus foliose, heteromerous, dorsiventral, forming up to 5(-8) cm wide rosettes. Lobes elongate, 0.8-1(-1.5) cm wide and up to 3(-5) cm long, flat or concave, rounded to subtruncate, grey to pale brown, dull, blackish green when wet, thickly white-grey tomentose especially whgen young and in marginal parts, sorediate, the soredia granular, arranged in persistent, up to 2 mm wide, orbicular, laminal soralia. Lower surface white, with anastomosing pale veins and up to 5 mm long, concolorous, richly branched, flocculent rhizines which become darker and sparser in central parts. Upper cortex pseudoparenchymatous; medulla white, of loosely interwoven hyphae; lower cortex absent. Apothecia rare, saddle-shaped, up to 5 mm across, developing on short ascending lobes. Asci fissitunicate, the thickened apex with a K/I+ blue ring, Peltigera-type. Ascospores 3-7-septate, hyaline to pale brown at maturity, fusiform, 40-60 x 3-4 μm. Photobiont cyanobacterial (Nostoc, the cells not in long chains). Spot tests: cortex K-, C-, KC-, P-; medulla and soralia C+ and KC+ pink (reactions often faint and usually ephemeral). Chemistry: medulla and soralia with methyl gyrophorate and gyrophoric acid.
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: absent
Subalpine belt: absent
Montane belt: very 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
Einar Timdal, Natural History Museum, University of Oslo, Norway - CC BY-SA NC
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_2/Peltigera_extenuata.htm
France, 27/4/2014 - Saint-Julien-d'Ance, alt. 750 m - Haute-Loire
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: absent
Subalpine belt: absent
Montane belt: very 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
Einar Timdal, Natural History Museum, University of Oslo, Norway - CC BY-SA NC
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
Gabriele Gheza - https://lichenidilombardia.home.blog/
Italy, Lombarida, Sondrio, Val Gerola, Nasoncio, 1087 m
27/08/2019
