Myriolecis agardhiana (Ach.) Śliwa, Zhao Xin & Lumbsch subsp. agardhiana

in Zhao Xin & al., Fungal Divers., 78: 300, 2016. Basionym: Lecanora agardhiana Ach. - Syn. Meth. Lich.: 152, 1814.
Synonyms: Lecanora agardhanioides A. Massal.; Lecanora agardhanioides var. cilophthalma A. Massal.; Lecanora agardhanioides var. dealbata A. Massal.; Lecanora agardhanioides var. melanophthalma A. Massal.; Lecanora agardhanioides var. microstigma A. Massal.; Lecanora agardhanioides var. pacnodes A. Massal.; Lecanora agardhiana Ach. subsp. agardhiana; Myriolecis agardhiana (Ach.) Sliwa, Zhao Xin & Lumbsch subsp. agardhiana
Distribution: N - VG, Frl, Ven (Lazzarin 2000b, Nascimbene 2005c), TAA (Nascimbene 2008b), Lomb, Piem, Emil (Tretiach & al. 2008, Fariselli & al. 2020), Lig. C - Tosc (Benesperi 2000a, Tretiach & al. 2008), Marc (Nimis & Tretiach 1999), Umb (Genovesi & Ravera 2001, Ravera & al. 2006), Laz (Nimis & Tretiach 2004), Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach, 1999, 2004, Caporale & al. 2008), Sar. S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Nimis & al. 1994, Ottonello & al. 1994, Caniglia & Grillo 2005, 2006).
Description: Thallus crustose, endosubstratic or very thinly episubstratic and poorly evident. Apothecia lecanorine, immersed in pits in the rock at least when young, 0.2-0.6 mm across, with a flat, dark brown to black, often pruinose disc and a thin, smooth, entire, sometimes finally excluded thalline margin. Thalline exciple corticate, the cortex usually more or less obscured by crystals insoluble in K, but soluble in N, the medullary part with a few algae only; epithecium brownish or olive, not granular, K-, N+ pink or purple; hymenium colourless, 60-70 μm high; paraphyses slender, simple, free in K; hypothecium colourless, without granules. 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, (7-)9-12 x (4-)5-6(-7.5) μm. Photobiont chlorococcoid. Spot tests: thallus (apothecial margin) K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a widespread holarctic lichen found on horizontal to weakly inclined surfaces of hard limestone and dolomite, with a wide altitudinal range; the distinction from other related species still needs further study.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: common
Subalpine belt: very common
Oromediterranean belt: very common
Montane belt: very common
Submediterranean belt: rather common
Padanian area: absent
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


Pier Luigi Nimis - CC BY-SA 4.0
TSB 41812



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13785)
2001/11/25



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010.



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010.



Felix Schumm – CC BY-SA 4.0
[16521], Germany, Baden-Württemberg, Kreis Göppingen, Gosbach - Bad Ditzenbach, Tierstein, 48°57461° N, 9,68471° E, 737 m. auf Kalkfelsen am Albrand. Leg. Schumm 20.06.2010.



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41811



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41812



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13785)
2001/11/25



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41811



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41813



Pier Luigi Nimis CC BY-SA 4.0
TSB 37974



P.L. Nimis CC BY-SA 4.0
TSB 42126



P.L. Nimis CC BY-SA 4.0
TSB 42126



P.L. Nimis CC BY-SA 4.0
TSB 42126



P.L. Nimis CC BY-SA 4.0
TSB 42126



P.L. Nimis CC BY-SA 4.0
TSB 37974



P.L. Nimis CC BY-SA 4.0
TSB 41811



P.L. Nimis CC BY-SA 4.0
TSB 41813