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:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Current prediction (1981-2010)
Future prediction (2071-2100) SSP 1-2.6
Future prediction (2071-2100) SSP 5-8.5Predictive 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; Owner: Paolo Fontanesi
Italy, Emilia-Romagna, Reggio Emilia, Riserva Naturale di Campotrera.
Herbarium: Forum Natura Mediterraneo
2010

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.

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
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:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Current prediction (1981-2010)
Future prediction (2071-2100) SSP 1-2.6
Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025

