Lecania erysibe (Ach.) Mudd

Man. Brit. Lich.: 41, 1861. Basionym: Lichen erysibe Ach. - Meth. Lich. Suppl.: 62, 1803.
Synonyms:
Distribution: N - VG (Castello 2002, Martellos & Castello 2004), Frl (Nimis & Salvadori 1998, Nascimbene & Salvadori 2008, Nascimbene & al. 2009b), Ven (Caniglia & al. 1993, Nascimbene & Salvadori 2008), TAA, Lomb (De Vita & Valcuvia 2004), Piem, VA (Piervittori & Isocrono 1999), Emil (Nimis & al. 1996, Bouvet 2008, Fariselli & al. 2020), Lig (Valcuvia & al. 2000). C - Tosc (Pinna & al. 2018), Marc (Nimis & Tretiach 1999), Umb (Genovesi & Ravera 2001, Ravera & al. 2006, Genovesi 2011), Laz (Genovesi & al. 2011), Abr (Nimis & Tretiach 1999, Caporale & al. 2016), Mol (Ravera & Genovesi 2012, Genovesi & Ravera 2014), Sar. S - Camp (Altieri & al. 2000, Aprile & al. 2003, 2003b, Roccardi & Ricci 2006, Garofalo & al. 2010), Pugl (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Ottonello & Salone 1994, Ottonello & al. 1994, Ottonello 1996, Caniglia & Grillo 2001, 2005, 2006, Grillo & al. 2001, Grillo & Caniglia 2004, Cataldo & Cannavò 2014).
Description: Thallus crustose, greenish grey, greenish yellow to dirty grey-brown, highly variable, from rimose to cracked-areolate, the areoles sharply angular, more or less regular, epruinose, with marginal, granulose, 60-80 µm wide blastidia which later can cover most of the thallus. Apothecia not always present, lecanorine, rounded, sessile, 0.2-0.6(-0.8) mm across, with a flat to slightly convex, orange-brown to dark brown disc and a thin, granular-blastidiate, often finally excluded thalline margin. Epithecium yellowish brown to dark brown; hymenium colourless to pale brown, 50-70 µm high; paraphyses coherent, mostly not swollen at apex, but a few apical cells slightly clavate, up to 3 µm wide; hypothecium colourless to pale brown. Asci 8-spored, narrowly clavate, with a K/I+ blue tholus and a central non-amyloid area, Bacidia-type. Ascospores 1-septate, hyaline, ellipsoid, 9-14(-16) x 3-5 µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a mainly temperate lichen found on calcareous substrata, often on mortar, concrete and brick walls below the subalpine belt; in the past often confused with other species.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: rare
Submediterranean belt: rather common
Padanian area: rather rare
Humid submediterranean belt: rather common
Humid mediterranean belt: rather rare
Dry mediterranean belt: rare

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

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (24880)
2001/12/03


Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)


Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/
Courtesy: Anita Stridvall


Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/
Courtesy: Anita Stridvall