Romjularia lurida (Ach.) Timdal

in Nash & al., Lichen Flora Gr. Sonoran Desert Reg., 3: 288, 2007. Basionym: Lecidea lurida Ach. - Meth. Lich.: 77, 1803.
Synonyms: Mycobilimbia lurida (Ach.) Hafellner & Türk; Psora lurida (Ach.) DC.; Psora lurida f. dispersa A. Massal.; Psora petri (Tuck.) Fink
Description: Thallus squamulose, pale to dark brown, becoming greenish when wet, epruinose, the squamules 2-5(-8) mm long and up to 4 mm wide, rounded at tips, slightly concave to weakly convex, smooth, clearly imbricate, the lower surface medium to dark brown. Upper cortex 40-70 µm thick, with a narrow epinecral layer, of rather thin-walled, more or less anticlinally oriented hyphae with ellipsoid to round lumina; algal layer continuous; medulla white, of intricately interwoven hyphae, I-. Apothecia frequent, lecideine to biatorine, sessile, up to 2 mm across, with a dark brown to black, at first flat, then rapidly convex disc and a thin, finally excluded proper margin. Proper exciple annular, pale brown, of thick-walled, strongly conglutinated, radiating hyphae; epithecium brownish, K-, N-; hymenium colourless, 80-100 µm high, I+ blue; paraphyses coherent, sparingly branched and anastomosing, the apical cells slightly swollen; hypothecium pale brown, without crystals of calcium oxalates. Asci 8-spored, elongate-clavate, with a thin, outer amyloid layer and a thickened tholus penetrated by a tube, the sides of which stain K/I+ deep blue, Porpidia-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, thin-walled, (8-)10-14(-16) x (5-)6-8(-9) µm. Pycnidia dark, at first immersed then slightly projecting, mostly marginal, with a dark brown wall and short-celled, intricately branched conidiophores. Conidia pleurogenous, hyaline, narrowly ellipsoid, (3-)4-6 x 1.5-2 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Squamulose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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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

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


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (19357)
2001/12/12


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino (Rupingrande)
07.07.2016


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, 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 Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017


Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017


Felix Schumm – CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm – CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Felix Schumm CC BY-SA 4.0
[16501], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen, Gosbach-Bad Ditzenbach, auf Kalkfelsen beim Tierstein, 737 m, 48,57461° N, 9,68471° E. Leg. et det. Schumm 20.06.2010.


Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/
Courtesy: Anita Stridvall


Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/
Courtesy: Anita Stridvall


P.L. Nimis - CC BY-SA 4.0
TSB 42019


P.L. Nimis - CC BY-SA 4.0
TSB 42019


Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0
TSB 37346


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/


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Psora_lurida.htm
France, session AFL 2008 - Lozère


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Aber Rozan


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Aber Rozan


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Aude Cucugnan


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Aude Cucugnan


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Pierre Saint Martin


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Pierre Saint Martin


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Pierre Saint Martin


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Pierre Saint Martin


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Remuzat


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Remuzat


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
Belgium, Ardennes Belges


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Drome Provencale


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence
associated vyanobacteria


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=175&lang=en
France, Provence
associated vyanobacteria


Ulrich Kirschbaum CC BY-SA 4.0 – Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Coll/ident. Eichler/Cezanne).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Alto de la Farrapona (Somiedo-Asturias), 30-V-2024, sobre rocas calizas.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Alto de la Farrapona (Somiedo-Asturias), 30-V-2024, sobre rocas calizas.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Salcedo, ermita del Alba (Quirós-Asturias), 29-XI-2022, sobre rocas calizas.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Salcedo, ermita del Alba (Quirós-Asturias), 29-XI-2022, sobre rocas calizas.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Salcedo, ermita del Alba (Quirós-Asturias), 29-XI-2022, sobre rocas calizas.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Salcedo, ermita del Alba (Quirós-Asturias), 29-XI-2022, sobre rocas calizas.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Salcedo, ermita del Alba (Quirós-Asturias), 29-XI-2022, sobre rocas calizas.


Giovanna Potenza - CC BY 4.0
Italia, Basilicata, Madonna del Soccorso Castelluccio S. 1100 m - suolo calcareo


Giovanna Potenza - CC BY 4.0
Italia, Basilicata, Madonna del Soccorso Castelluccio S. 1100 m - suolo calcareo


Giovanna Potenza - CC BY 4.0
Italia, Basilicata, Madonna del Soccorso Castelluccio S. 1100 m - suolo calcareo


Giovanna Potenza - CC BY 4.0
Italia, Basilicata, Madonna del Soccorso Castelluccio S. 1100 m - suolo calcareo


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


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


Wolfgang von Brackel - CC BY-4.0
Italy, Piemonte, Val di Susa


Wolfgang von Brackel - CC BY-4.0
Italy, Piemonte, Val di Susa


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


Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, In opp. Giazza ad terram 1855
as Psora lurida


Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in M. Baldo
as Psora lurida