Peltigera lepidophora (Vain.) Bitter

Ber. dtsch. bot. Ges., 22: 251, 1904. Basionym: Peltigera canina var. lepidophora Vain. - Meddeland. Soc. Fauna Fl. Fenn., 2: 49, 1878.
Synonyms: Peltigera lepidophora f. helvetica Gyeln.; Peltigera lepidophora f. nudiuscula Gyeln.?; Peltigera lepidophora var. dalecarlica Gyeln.
Distribution: N - Frl, Ven (Nimis 1994, Nascimbene & Marini 2007), TAA (Nascimbene & al. 2006, 2022, Bilovitz & al. 2014b), Lomb (Vitikainen 1994, Gheza 2019, Gheza & al. 2022), Piem (Clerc & al. 1999), VA (Vitikainen 1994), Lig (Ravera & al. 2024a). C - Laz (Brackel 2015), Abr (Gheza & al. 2021). S - Si (Di Martino & Stancanelli 2015).
Description: Thallus foliose, broad-lobed, heteromerous, dorsiventral, grey brown to brown often with a yellowish hue when dry, blackish when wet, loosely attached. Lobes concave to flat, adpressed to the substratum, rounded, 5-10(-20) mm broad, to 35(-40) mm long, glabrous to sparsely tomentose at margin, somewhat scabrous, with darker, flattened, peltate, up to 1.5 mm broad schizidia resembling the cephalodia of P. aphthosa. Lower surface whitish to pale brown, with rather indistinct, pale brown, narrow and flat veins and simple to fibrillose, brown, up to 5(-10) mm long rhizines. Upper cortex pseudoparenchymatous; medulla white; lower cortex absent. Apothecia rare, on short erect lobes, small, saddle-shaped, brown. Paraphyses simple, distinctly thickened above. Asci 8-spored, fissitunicate, the thickened apex with a K/I+ blue ring, Peltigera-type. Ascospores 3-7-septate, hyaline to pale brown at maturity, fusiform, 49-59 x 4.5-5 µm. Photobiont cyanobacterial (Nostoc, the cells not in long chains). Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a mainly boreal-montane, circumpolar pioneer species of base-rich mineral soil, most frequent in upland areas with optimum near treeline; most frequent in the Alps, but apparently reaching the mountains of Sicily.
Growth form: Foliose, broad lobed
Substrata: soil, terricolous mosses, and plant debris
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)
Pioneer species

Commonnes-rarity: (info)

Alpine belt: extremely rare
Subalpine belt: very rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model
Herbarium samples
Index Fungorum GBIF

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Coll/ident: Eichler/Cezanne).



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (7728)
2001/12/05
detail of upper surface



P.L. Nimis CC BY-SA 04
TSB 12807



P.L. Nimis CC BY-SA 04
TSB 12807


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Peltigera_lepidophora.htm
France, 2/9/2014 - Vanoise, Mont Cenis - Savoir


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Peltigera_lepidophora.htm
France, 2/9/2014 - Vanoise, Mont Cenis - Savoir


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Peltigera_lepidophora.htm
France, 2/9/2014 - Vanoise, Mont Cenis - Savoir


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1316&lang=en
Spain, Pyrénées espagnoles Bielsa Monté Perdito


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1316&lang=en
Spain, Pyrénées espagnoles Bielsa Monté Perdito


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1316&lang=en
Spain, Pyrénées espagnoles Bielsa Monté Perdito


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1316&lang=en
Spain, Pyrénées espagnoles Bielsa Monté Perdito


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1316&lang=en
Spain, Pyrénées espagnoles Bielsa Monté Perdito


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1316&lang=en
Spain, Pyrénées espagnoles Bielsa Monté Perdito


Leif Stridvall http://www.stridvall.se/la/galleries.php