Lepra corallina (L.) Hafellner

in Hafellner & Türk, Stapfia, 104: 171, 2016. Basionym: Lichen corallinus L. - Mantissa Plant., 1: 131, 1767.
Synonyms: Marfloraea corallina (L.) S. Y. Kondr., L. Lőkös & J.-S. Hur; Pertusaria corallina (L.) Arnold; Pertusaria corallina var. verruculosa Erichsen; Pertusaria dealbata f. corallina (L.) Cromb.; Pertusaria harmandii M. Choisy; Pertusaria subdubia Nyl.; Pertusaria syncarpa var. corallina Mudd; Variolaria corallina (L.) Ach.
Distribution: N - Frl (Tretiach & Hafellner 2000), TAA (Caniglia & al. 2002, Nascimbene & al. 2022), Lomb (Dalle Vedove & al. 2004), Piem (Isocrono & al. 2004), VA (Borlandelli & al. 1996, Piervittori & Isocrono 1997, 1999, Piervittori & al. 2001), Emil (Tretiach & al. 2008, Fariselli & al. 2020), Lig. C - Tosc (Tretiach & al. 2008), Laz (Zucconi & al. 2013), Abr, Sar (Nöske 2000, Rizzi & al. 2011, Brackel & Berger 2019, Nascimbene & al. 2023). S - Cal (Puntillo 1996), Si (Grillo & al. 1996, Grillo 1998, Grillo & Caniglia 2004).
Description: Thallus crustose, episubstratic, continuous to rimose, grey, sometimes with a pale yellowish brown tinge towards the centre, 1.5-4 mm thick, well-delimited, isidiate, forming patches to 12 cm in diam, often with a whitish prothallus. Medulla white, not amyloid. lsidia abundant, cylindrical or tapering from base, simple or coralloid, up to 1.5(-2) mm high, 0.1-0.3 mm thick, irregularly oriented. Apothecia very rare, immersed in number of 2-4(-10) into heavily pruinose, up to 1.5(-2) mm wide thalline warts which are constricted at base; disc at first punctiform, later more or less expanded and 0.3-0.5 mm across, pale to dark brown, often faintly white-pruinose. Hymenium colourless, the hymenial gel not or only weakly amyloid; paraphyses lax, branched and richly anastomosing. Asci 2-spored, broadly cylindrical, the apex without a distinct ocular chamber, the outer sheath K/I+ blue, otherwise K/I–, with an inner extensible layer, Pertusaria-type. Ascospores 1-celled, hyaline, ellipsoid, 80-140(-200) x 40-80 μm, the wall 2-3 μm thick, not zoned nor striate. Photobiont chlorococcoid. Spot tests: thallus K+ yellow-orange, C-, KC-+ yellow, P+ yellow-orange, UV-. Chemistry: thamnolic acid.
Note: a cool-temperate to boreal-montane lichen found on steeply inclined surfaces of siliceous rocks in rainy areas, where it is sometimes very abundant; most frequent in the Alps, rarer elsewhere, ranging south to the mountains of Sicily.
Growth form: Crustose
Substrata: 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: rare
Subalpine belt: rather rare
Oromediterranean belt: extremely rare
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
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

Nere Sorrentino
Spain, Canary Islands, Tenerife, Anaga, on rock



Felix Schumm - CC BY-SA 4.0
[4633], Österreich, Sellrainer Berge, südwestlich von Innsbruck, bei der Drei-Seen-Hütte südöstlich von Kühtai, ca. 2450 m, an Granit/Gneis, TK 8732. Leg. et det. F. Schumm, 04.08.1996.



Felix Schumm - CC BY-SA 4.0
[4633], Österreich, Sellrainer Berge, südwestlich von Innsbruck, bei der Drei-Seen-Hütte südöstlich von Kühtai, ca. 2450 m, an Granit/Gneis, TK 8732. Leg. et det. F. Schumm, 04.08.1996.
th: thamnolic acid, 1: terpene, conf. J.A. Elix



Felix Schumm - CC BY-SA 4.0
[4710], Baden-Württemberg, Schwarzwald, Kreis Schramberg, westliche Talseite im Schiltachtal, 3 km südl. Schramberg, 550 m, auf Silikatgestein 7716/SW Wirth & Schwarz 21.11.1992 Wirth Foto



Felix Schumm - CC BY-SA 4.0
[4710], Baden-Württemberg, Schwarzwald, Kreis Schramberg, westliche Talseite im Schiltachtal, 3 km südl. Schramberg, 550 m, auf Silikatgestein 7716/SW Wirth & Schwarz 21.11.1992 Wirth Foto


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


Erichsen C.F.E. 1936. Pertusariaceae. - In: Dr. L. Rabenhorsts Kryptogamenflora von Deutschland, Österreich und der Schweiz. Bd. IX, Abt. 5, T. 1. Akad. Verlagsges., Leipzig, pp. 321-512, 513-728. - Public Domain


Nere Sorrentino
Spain, Canary Islands, Tenerife, Anaga, on rock


Nere Sorrentino
Spain, Canary Islands, Tenerife, Anaga, on rock


Nere Sorrentino
Spain, Canary Islands, Tenerife, Anaga, on rock


Nere Sorrentino
Spain, Canary Islands, Tenerife, Anaga, on rock



Felix Schumm - CC BY-SA 4.0
[4633], Österreich, Sellrainer Berge, südwestlich von Innsbruck, bei der Drei-Seen-Hütte südöstlich von Kühtai, ca. 2450 m, an Granit/Gneis, TK 8732. Leg. et det. F. Schumm, 04.08.1996.



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 37588



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 37588



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 37588



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 37588



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 41263



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 41263



P.L. Nimis CC BY-SA 4.0L. Nimis
TSB 41263


Andres Saag University of Tartu


Andres Saag University of Tartu


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



P.L. Nimis CC BY-SA 4.0
TSB 34932



P.L. Nimis CC BY-SA 4.0
TSB 21204


Nere Sorrentino
Spain, Canary Islands, Tenerife, Anaga, on rock


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lepra_corallina.htm
France, sur roche siliceuse - session AFL 2005 en Lozère


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lepra_corallina.htm
France, sur roche siliceuse - session AFL 2005 en Lozère


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lepra_corallina.htm
France, session AFL 2013 dans le Forez


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lepra_corallina.htm
France, session AFL 2013 dans le Forez


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=264&lang=en
France, Corse, Forêt de Tartagine