Protoparmeliopsis muralis (Schreb.) M. Choisy var. muralis

Contrib. Lichénogr., dec. I, tab. 7, 1929. Basionym: Lichen muralis Schreb. - Spicil. Fl. Lips.: 130, 1771.
Synonyms: Lecanora diffracta (Ach.) Ach. non auct. ital.; Lecanora muralis (Schreb.) Rabenh.; Lecanora saxicola (Pollich) Ach.; Patellaria muralis (Schreb.) Trevis.; Placolecanora muralis (Schreb.) Räsänen
Description: Thallus crustose-placodioid, episubstratic, yellowish green to grey-green, weakly areolate in the center, distinctly lobed at margins, forming orbicular to irregular, up to 10 cm wide rosettes. Lobes 0.5-1(-1.8) mm wide, concabe to flat, contiguous, separated by thin white lines, slightly diverging only at thallus margins, smooth and wax-like, epruinose or rarely weakly pruinose at tips; lower surface corticate, dull whitish to pale brown. Upper cortex 50-75 µm (or more) thick, inspersed with yellowish granules soluble in K and insoluble in N, overlain by a 5-10(-15) µm thick epinecral layer; medulla white, rather loose; lower cortex poorly developed, mostly confined to the tips or margins of lobes. Apothecia usually numerous, lecanorine, masking the surface in thallus center, 0.5-1.5(-2) mm across, sessile, with a flat, yellow-brown to ochre-brown disc and a smooth to minutely crenulate, whitish, epruinose, persistent thalline margin (sometimes excluded in very old apothecia). Thalline exciple corticate, paraplectenchymatous; proper exciple thin, prosoplectenchymatous; epithecium pale yellow to brown, with granular crystals not dissolving in K; hymenium colourless, 50-80 µm high, I+ blue; paraphyses coherent. 2-3 µm thick, mainly simple or sparingly branched in upper part, the apical cells only slightly swollen; hypothecium colourless to yellowish. Asci 8-spored, elongate-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 K/I+ blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 8-15(-16) x (3-)5-7 µm. Spot tests: thallus K- or K+ very pale yellow, C-, KC+ pale yellow, P- or P+ pale yellow, UV+ dull orange. Chemistry: cortex with usnic acid, medulla with zeorin, and traces of murolic and psoromic acids.
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rare
Subalpine belt: rather rare
Montane belt: rather common
Dry submediterranean belt: extremely common
Humid submediterranean belt: extremely common
Padanian area: 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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Rarity

absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Model ImageCurrent prediction (1981-2010)
Model ImageFuture prediction (2071-2100) SSP 1-2.6
Model ImageFuture prediction (2071-2100) SSP 5-8.5
Predictive maps according to Francesconi et al. 2025

Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Paolo Fontanesi, Reggio Emilia; Owner: Paolo Fontanesi, Reggio Emilia


Manilio Prignano; Owner: Manilio Prignano
Italy, Abruzzo, Monti della Laga
2010


Manilio Prignano; Owner: Manilio Prignano
Italy, Abruzzo, Monti della Laga
2010


Simonetta Peruzzi; Owner: Simonetta Peruzzi
Italy, Toscana, Firenze, Lucolena
2010


Simonetta Peruzzi; Owner: Simonetta Peruzzi
Italy, Toscana, Firenze, Lucolena
2010


Simonetta Peruzzi; Owner: Simonetta Peruzzi
Italy, Toscana, Firenze, Chianti
2010


Simonetta Peruzzi; Owner: Simonetta Peruzzi
Italy, Toscana, Firenze, Chianti
2010


Paolo Fontanesi; Owner: Paolo Fontanesi
Italy, Emilia-Romagna, Reggio Emilia, Riserva Naturale di Campotrera.
Herbarium: Forum Natura Mediterraneo
2010


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


Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Val Rosandra, San Lorenzo near Belvedere
11/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Italy, Lazio, Roma, Ruines of ancient Tusculum, above Frascati
18/03/2017


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988.


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988


Felix Schumm – CC BY-SA 4.0
[4521], Germany, Baden-Württemberg, Rems-Murr-Kreis, zwischen Korb und Winnenden, Naturdenkmal an der Südwestecke des Korber Kopfes, xerothermer Hang eines ehemaligen Weinberges, ca. 420 m, an Sandsteinmauern. Leg. et det. Schumm 07.04.1988


Felix Schumm - CC BY-SA 4.0
[LIAF_75], Afghanistan, Prov.Paktia, 10 km NE Khost, an der Straße nach Yaqubi, 68°58’ E, 3323.5’ N, 1170 m. Auf der N-Flanke einer ca. 3 m hohen, E-W-überstreichenden Volkanit-Felsrippe in der Schotterebene. Leg. M. Steiner (Ste 70/1), 03.07.1970. LICHENOTHECA AFGHANICA 75.


Felix Schumm - CC BY-SA 4.0
[LIAF_75], Afghanistan, Prov.Paktia, 10 km NE Khost, an der Straße nach Yaqubi, 68°58’ E, 3323.5’ N, 1170 m. Auf der N-Flanke einer ca. 3 m hohen, E-W-überstreichenden Volkanit-Felsrippe in der Schotterebene. Leg. M. Steiner (Ste 70/1), 03.07.1970. LICHENOTHECA AFGHANICA 75.


Felix Schumm - CC BY-SA 4.0
[LIAF_75], Afghanistan, Prov.Paktia, 10 km NE Khost, an der Straße nach Yaqubi, 68°58’ E, 3323.5’ N, 1170 m. Auf der N-Flanke einer ca. 3 m hohen, E-W-überstreichenden Volkanit-Felsrippe in der Schotterebene. Leg. M. Steiner (Ste 70/1), 03.07.1970. LICHENOTHECA AFGHANICA 75.


Nere Sorrentino
Spain, Canary Islands, Tenerife


Nere Sorrentino
Spain, Canary Islands, Tenerife


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=327&lang=en
France, Châteaulin


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=327&lang=en
France, Châteaulin


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=327&lang=en
France, Goulien


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=327&lang=en
France, Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=327&lang=en
France, Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=327&lang=en
France, Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=327&lang=en
France, Corse


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


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Nürnberg


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Riem


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Riem


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Riem


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Röttenbach