Pannaria rubiginosa (Ach.) Bory

Dict. Class. Hist. Nat., 13: 20, 1828. Basionym: Lichen rubiginosus Ach. - Lichenogr. Suec. Prodr.: 99, 1799.
Synonyms: Lichen affinis Dicks.; Lichen squamosus Hoffm. nom. illegit.; Parmelia rubiginosa (Ach.) Ach.
Distribution: N - Frl (TSB 32724), Ven (Nascimbene & Marini 2010), TAA (Nascimbene & al. 2007b, Nimis & al. 2015), Lomb, VA, Emil (Fariselli & al. 2020), Lig. C - Tosc, Marc, Sar (Rizzi & al. 2011, Di Nuzzo & al. 2022). S - Camp (Ravera & al. 2021c), Bas (Potenza 2006, Potenza & Fascetti 2012), Cal (Puntillo 1996), Si (Merlo 2004).
Description: Thallus foliose, heteromerous, dorsiventral, forming orbicular rosettes up to 5 cm in diam., developing on a conspicuous hypothallus that sometimes extends as a blue-black zone around the thallus. Lobes mostly concave, 3-4 mm wide, up to 8 mm long, with raised, whitish, incised margins. Upper surface bluish grey to olive-brown, smooth to pruinose or sometimes scabrous at apices; lower surface white with blue-black rhizohyphae. Upper cortex paraplectenchymatous; medulla white. Apothecia common, lecanorine, 0.5-1.5 mm across, with a red-brown disc and a persistent, crenulate or minutely squamulose thalline margin. Exciple subparaplectenchymatous; epithecium brown; hymenium colourless, partially I+ blue near the asci. Asci 8-spored, clavate to subcylindrical, with a well developed, non-amyloid or very weakly amyloid tholus lacking internal structures, and an intensely amyloid, thin outer sheath. Ascospores 1-celled, hyaline, broadly ellipsoid, 20-24 x 10-12 µm (including the epispore). Photobiont cyanobacterial, (Nostoc), the cells not in chains. Spot tests: thallus K-, C-, KC-, P+ orange. Chemistry: pannarin.
Note: a rare species of Lobarion-communities, restricted to rainy-humid areas, mostly on old mossy trunks in forests, and strongly declining, especially in Northern Italy. It is included in the Italian red list of epiphytic lichens as “Near-threatened” (Nascimbene & al. 2013c).
Growth form: Foliose, narrow lobed
Substrata: bark
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual
Restricted to humid-warm, oceanic areas

Commonnes-rarity: (info)

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

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

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


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



Curtis Randall Björk – CC BY-SA 4.0
Near Metchosin, British Columbia, Canada



Felix Schumm – CC BY-SA 4.0
Image from: F. Schumm (2008) - Flechten Madeiras, der Kanaren und Azoren. Beck, OHG - ISBN: 978-3-00-023700-3



Felix Schumm – CC BY-SA 4.0
[15334], La Reunion; det. P.M. Jørgensen.



Felix Schumm – CC BY-SA 4.0
[15334], La Reunion; det. P.M. Jørgensen.


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga



P.L. Nimis CC BY-SA 4.0
TSB 8679


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga


Nere Sorrentino
Spain, Canary Islands, Tenerife, Sierra de Anaga



Pier Luigi Nimis - CC BY-SA 4.0
TSB 17118



Pier Luigi Nimis - CC BY-SA 4.0
TSB 17118



Pier Luigi Nimis - CC BY-SA 4.0
TSB 17118



Felix Schumm – CC BY-SA 4.0
[15334], La Reunion; det. P.M. Jørgensen.


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Pannaria_rubiginosa.htm
France, Gorges de la Rhue - Cantal
23/09/2015


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Pannaria_rubiginosa.htm
France, Gorges de la Rhue - Cantal
23/09/2015


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P/Pannaria_rubiginosa.htm
France, Gorges de la Rhue - Cantal
23/09/2015


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Lesteven



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (17118)
2001/11/28


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=309&lang=en
France, Crozon