Myriolecis hagenii (Ach.) Śliwa, Zhao Xin & Lumbsch

in Zhao Xin & al., Fungal Divers., 78: 301, 2016. Basionym: Lichen hagenii Ach. - Lichenogr. Suec. Prodr.: 57, 1799.
Synonyms: Lecanora bormiensis Nyl.; Lecanora hagenii (Ach.) Ach.; Lecanora hagenii var. bormiensis (Nyl.) Dalla Torre & Sarnth.; Lecanora hagenii var. lithophila (Wallr.) Flot.?; Lecanora hagenii var. ocellulata (A. Massal.) Bagl.; Lecanora hagenii var. umbrina Ach.; Lecanora nigrescens Stein; Lecanora sommerfeltiana var. ocellulata A. Massal.; Lecanora umbrina (Ach.) A. Massal.; Myriolecis hagenii (Ach.) Sliwa, Zhao Xin & Lumbsch
Distribution: N - VG (Castello 1996), Frl, Ven (Nimis & al. 1996c, Caniglia & al. 1999, Lazzarin 1997, 2000, Valcuvia & al. 2000c, Lazzarin 2000b, Nascimbene & Caniglia 2003c, Nascimbene & Marini 2007), TAA (Nascimbene & al. 2006, 2007b, Nascimbene 2008b, Zarabska & al. 2009, Nimis & al. 2015), Lomb (Grieco & Groppali 1995, Valcuvia & Brusoni 1996, Brusoni & al. 1997, Zocchi & al. 1997, Roella 1999, Brusoni & Valcuvia 2000, Casarini & al. 2000, Arosio & al. 2000, 2003, Valcuvia 2002, 2002b, Valcuvia & al. 2003, Valcuvia & al. 2003, Anderi & al. 2005, Valcuvia & Truzzi 2007, 2007b, Furlanetto 2010, Gheza & al. 2015), Piem (Arosio & al. 1998, Piervittori 1998, 2003, Isocrono & Falletti 1999, Castino 2004, Isocrono & al. 2004, 2007, Furlanetto 2010, Matteucci & al. 2010, Marchiaro & al. 2013, Giordani & Malaspina 2016), VA (Piervittori & Maffei 1996, 2001, Piervittori & Isocrono 1997, 1999, Valcuvia & al. 2000b, De Vita & Valcuvia 2002, 2002b, 2004, Gazzano & al. 2009, 2009b, Ongaro & al. 2022), Emil (Bassi 1995, Gasparo & Tretiach 1996, Nimis & al. 1996, Valcuvia & Savino 2000, Sallese 2003, Morselli & Regazzi 2006, Cioffi 2009, Malavasi 2014, Watson 2014, Gerdol & al. 2014, Fariselli & al. 2020), Lig (Valcuvia & al. 2000, Giordani & Incerti 2008, Giordani & al. 2016). C - Tosc (Loppi & Corsini 1995, Loppi & al. 1996b, 1997e, 2002b, 2002c, 2003, 2004, Lorenzini & al. 2003, Loppi & Frati 2006, Frati & al. 2007, 2008, Benesperi & al. 2007, 2013, Loppi & Nascimbene 2010, Benesperi 2011, Brunialti & al. 2012b), Marc (Nimis & Tretiach 1999, Frati & Brunialti 2006), Umb (Ravera 2000, Ravera & al. 2006, 2006b, Panfili 2007, Brunialti & Frati 2010), Laz (Bartoli & al. 1997, Ravera & al. 1999, Massari & Ravera 2002, Ruisi & al. 2005, Munzi & al. 2007, Ravera 2008b, Ravera & Genovesi 2008, Zucconi & al. 2013), Abr (Recchia & al. 1993, Recchia & Villa 1996, Olivieri & al. 1997, 1997b, Loppi & al. 1999, Nimis & Tretiach 1999, Caporale & al. 2016, Corona & al. 2016, Gheza & al. 2021), Mol (Nimis & Tretiach 1999, Caporale & al. 2008, Genovesi & Ravera 2014, Caporale & Ravera 2020), Sar (Zedda 2002, Rizzi & al. 2011). S - Camp (Aprile & al. 2002, 2003b, Nimis & Tretiach 2004, Brunialti & al. 2010, 2013, Garofalo & al. 2010, Ravera & Brunialti 2013, Catalano & al. 2016), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999, Paoli & al. 2006), Cal (Puntillo 1996), Si (Nimis & al. 1994, Ottonello & Salone 1994, Ottonello 1996, Grillo & Cristaudo 1995, Grillo & Carfì 1997, Grillo 1998, Grillo & al. 2002, Grillo & Caniglia 2004, 2006, Caniglia & Grillo 2006b, Stofer 2006, Falco Scampatelli 2005, Grillo & Cataldo 2008, Liistro & Cataldo 2011, Campisi & al. 2020).
Description: Thallus endosubstratic, not visible. Apothecia lecanorine, sessile, 0.3-0.6(-0.9) mm across, with a pale to dark brown, slightly to heavily pruinose disc and a white-pruinose, prominent, usually crenulate thalline margin. Thalline exciple with an indistinctly delimited cortex obscured by granules which are insoluble in K, but soluble in N; epithecium yellowish brown, with superficial granules insoluble in K and soluble in N; hymenium colourless, 40-60 µm high; paraphyses simple, thick, slightly expanded or capitate, brown pigmented at tips, usually free in K; hypothecium colourless. Asci 8-spored, clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 8-13(-16) x 4-5(-7) µm. Photobiont chlorococcoid. Spot tests: thallus (apothecial margin) K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a widespread holarctic lichen belonging to a very difficult complex. It is common on isolated trees with base-rich bark, and on calciferous substrata, including walls of mortar. Indicator values refer to the species considered in a very broad sense. See also note on Lecanora calabrica.
Growth form: Crustose
Substrata: bark and rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species

Commonnes-rarity: (info)

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

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


P.L. Nimis CC BY-SA 04
TSB 38781



Felix Schumm – CC BY-SA 4.0
[3139b zusammen mit Calicium salicinum], Germany, Baden-Württemberg, Schwarzwald, Weg vom Feldberg zur Zastler Hütte, ca. 1300 m, MTB: 8114. Leg. F. Schumm & H.-J. Wolf, 30.08.1987, det. F. Schumm 1987.



Felix Schumm – CC BY-SA 4.0
[3139b zusammen mit Calicium salicinum], Germany, Baden-Württemberg, Schwarzwald, Weg vom Feldberg zur Zastler Hütte, ca. 1300 m, MTB: 8114. Leg. F. Schumm & H.-J. Wolf, 30.08.1987, det. F. Schumm 1987.



Felix Schumm – CC BY-SA 4.0
[3139b zusammen mit Calicium salicinum], Germany, Baden-Württemberg, Schwarzwald, Weg vom Feldberg zur Zastler Hütte, ca. 1300 m, MTB: 8114. Leg. F. Schumm & H.-J. Wolf, 30.08.1987, det. F. Schumm 1987.



Felix Schumm – CC BY-SA 4.0
[3139b zusammen mit Calicium salicinum], Germany, Baden-Württemberg, Schwarzwald, Weg vom Feldberg zur Zastler Hütte, ca. 1300 m, MTB: 8114. Leg. F. Schumm & H.-J. Wolf, 30.08.1987, det. F. Schumm 1987.



Felix Schumm – CC BY-SA 4.0
[3139b zusammen mit Calicium salicinum], Germany, Baden-Württemberg, Schwarzwald, Weg vom Feldberg zur Zastler Hütte, ca. 1300 m, MTB: 8114. Leg. F. Schumm & H.-J. Wolf, 30.08.1987, det. F. Schumm 1987.



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (31022)
2001/12/05


Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php . Courtesy: A. Stridvall



P.L. Nimis CC BY-SA 04
TSB 38781