Platismatia glauca (L.) W.L. Culb. & C.F. Culb.

Contr. U.S. Nat. Herb., 34: 530, 1968. Basionym: Lichen glaucus L. - Sp. Pl., 2: 1148, 1753.
Synonyms: Cetraria fallax (Weber) Anders; Cetraria glauca (L.) Ach.; Cetraria glauca f. coralloidea Körb.; Cetraria glauca var. fallax (Weber) Rass.; Parmelia glauca (L.) Hepp; Platysma fallax (Weber) Hoffm.; Platysma glaucum (L.) Frege
Distribution: N - VG, Frl, Ven (Nascimbene & Caniglia 1997, 2000b, 2002c, 2003c, Lazzarin 1997, Nascimbene 2005c, 2008c, 2011, Nascimbene & al. 2006e, 2010b, 2013b, Brackel 2013), TAA (Nascimbene & Caniglia 2000b, 2002c, Caniglia & al. 2002, Nascimbene 2003, 2006b, 2006c, 2008b, 2014, Gottardini & al. 2004, Nascimbene & al. 2005, 2006, 2006e, 2007b, 2009, 2010, 2014, 2022, Nascimbene & Marini 2015, Nimis & al. 2015, Trindade & al. 2021), Lomb (Gheza 2019, 2019b), Piem (Caniglia & al. 1992, Isocrono & al. 2003), VA (Piervittori & Isocrono 1999), Emil (Dalle Vedove & al. 2002, Tretiach & al. 2008, Benesperi 2009, Fariselli & al. 2020), Lig (Brunialti & al. 1999). C - Tosc (Tretiach & Nimis 1994, Tretiach & Ganis 1999, Laganà & al. 2002, Benesperi & al. 2007, Benesperi & Lastrucci 2007, Lastrucci & al. 2009, Pasquinelli & al. 2009, Brackel 2015, Lich. Ital. Exs. 21: Isocrono & al. 2018, Frati & Brunialti 2023), Marc (Nimis & Tretiach 1999), Umb (Ravera 1998, Panfili 2000, Ravera & al. 2006), Laz (Ravera 2001, 2002, Massari & Ravera 2002, Brackel 2015), Abr, Mol (Garofalo & al. 1999, Caporale & al. 2008, Brackel 2020), Sar (Zedda 1995, Nöske 2000, Zedda & Sipman 2001, Cossu 2013). S - Camp (Garofalo & al. 1999, 2010, Ricciardi & al. 2000, Aprile & al. 2002, 2003, 2003b, Brunialti & al. 2010, 2013, Nascimbene & al. 2010b, Catalano & al. 2010, 2016, Ravera & Brunialti 2013), Pugl, Bas (Potenza 2006, Brackel 2011, Caggiano & al. 2015), Cal (Puntillo 1995, 1996, Incerti & Nimis 2006, Obermayer & Randlane 2012, Brackel & Puntillo 2016), Si (Czeczuga & al. 1999, Grillo 1996, Merlo 2004, Ottonello 2005, Iacolino & Ottonello 2006, Campisi & al. 2020).
Description: Thallus foliose to subfruticose, loosely adnate, (3-)8-15(-20) cm across. Lobes thin (<1 mm), papery, up-curved, to 1.5(-3) cm wide, sometimes strap-shaped, greenish grey to pale greenish brown, often with darkened areas, smooth to strongly reticulately wrinkled, without distinct pseudocyphellae but often with an incomplete network of white maculae, the margins irregularly indented, bearing simple to coralloid isidia which, when abraded, resemble granular soredia. Upper cortex c. 15-25 µm thick, more or less prosoplectenchymatous, with a non-pored epicortex, often I+ blue, the cell walls with the Cetraria-type lichenan and isolichenan; medulla white; lower cortex 16-25 µm thick. Lower surface black towards center, spotted brown or white towards margins, shiny, smooth or reticulately wrinkled, sometimes coarsely foveolate, with usually scarce, simple, short rhizines. Apothecia very rare, lecanorine, 0.5-2 cm across, submarginal, with a brown to brown-black disc. Epithecium brown; hymenium colourless, I+ blue; parpahyses simple or sparingly branched; hypothecium thin, colourless, I+ blue. Asci 8-spored, clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid to ovoid, 4-8.5 x 3-5 µm. Pycnidia marginal, immersed. Conidia sublageniform, 6-7 x c. 1 µm. Photobiont chlorococcoid. Spot tests: upper cortex K+ yellow, C-, KC-, P- or P+ faintly yellow; medulla K-, C-, KC-, P-, UV-. Chemistry: upper cortex with atranorin and chloroatranorin; medulla with caperatic acid.
Note: a cool-temperate to circumboreal species, abundant in the montane and subalpine belts of the Alps, on acid bark, both of beech and of conifers, sometimes on lignum and even siliceous rocks, becoming progressively rarer along the Apennines. Molecular data revealed 2 clades, both present in Europe, which are hardly distinguishable morphologically (Asher & al. 2023).
Growth form: Foliose, broad lobed
Substrata: bark and rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)

Commonnes-rarity: (info)

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

pH of the substrata:

12345

Solar irradiation:

12345

Aridity:

12345

Eutrophication:

12345

Poleotolerance:

0123

Altitudinal distribution:

123456


Predictive model
Herbarium samples


Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (24825)
2001/12/11



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (24825)
2001/12/11
isidia


Andres Saag; Owner: University of Tartu


Triin Aimla; Owner: University of Tartu



P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (36785)
2008.02.28



P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (36785)
2008.02.28
isidia



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Udine, Passo del Pura, Ampezzo Carnico, 1400 m
09.09.2016



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Udine, Passo del Pura, Ampezzo Carnico, 1400 m
09.09.2016



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Udine, Passo del Pura, Ampezzo Carnico, 1400 m
09.09.2016



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Udine, Passo del Pura, Ampezzo Carnico, 1400 m
09.09.2016



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Felix Schumm - CC BY-SA 4.0
[19630], Germany, Baden-Württemberg, Kreis Göppingen, Zell bei Börtlingen, im Marbachtal, Tümpelrand beim Tannweg, 48.7572° N, 9.6447° E, 365 m. Leg. et det. F. Schumm 26.03.2017.



Juri Nascimbene - CC BY-SA 4.0
Paneveggio, Reg. Trentino-Alto Adige Prov. Trento, Italy.
2009



Curtis Randall Björk – CC BY-SA 4.0
Nanaimo Hills, Vancouver Island, British Columbia, Canada
19-20.11.2018


Helena Rodriguez
Spain, Galicia, Peña Trevinca
06.2019


Hillmann J. 1936. Parmeliaceae. In: Rabenhorst’s Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 5, 3. Borntraeger\Leipzig, pp. 1-309.


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Iraty


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
Sweden


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Roc'h Trevezel


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Vizzavona


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Vizzavona


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Pyrenees Cauterets


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Ardennes


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=450&lang=en
France, Corse, Soccia


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


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Sweden: Värmland.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain



Felix Schumm - CC BY-SA 4.0
[3030] Germany, Baden-Württemberg, Schwarzwald, Fichtenwald auf Muschelkalk zwischen Fluorn und Rötenberg westlich von Oberndorf, ca. 670 m. Leg. Schumm 02.12.1984
Atranorin Aufkochen in GE, 1 Stunde warten, beobachtet mit Obj. 5x, 10x, 20x, 40x.



Felix Schumm - CC BY-SA 4.0
[3030] Germany, Baden-Württemberg, Schwarzwald, Fichtenwald auf Muschelkalk zwischen Fluorn und Rötenberg westlich von Oberndorf, ca. 670 m. Leg. Schumm 02.12.1984
Atranorin Aufkochen in GE, 1 Stunde warten, beobachtet mit Obj. 5x, 10x, 20x, 40x.