Clauzadea immersa (Hoffm.) Hafellner & Bellem.

in Hafellner, Beih. Nova Hedwigia, 79: 322, 1984. Basionym: Verrucaria immersa Hoffm. - Descr. Adumbr. Plant. Lich., 1, 2: 58, 1789.
Synonyms: Biatora immersa (Hoffm.) P. Syd.; Hymenelia immersa sensu Jatta; Lecidea calcivora (Schaer.) A. Massal.; Lecidea immersa (Hoffm.) Ach.; Lecidella immersa (Hoffm.) Körb.; Lichen immersus Weber nom. illegit.; Protoblastenia immersa (Hoffm.) J. Steiner
Distribution: N - VG (Tretiach & Pecchiari 1995, Pinna & al. 1998, Meyer 2002, Crisafulli & al. 2006, Piervittori & al. 2006, Cucchi & al. 2009), Frl (Pinna & al. 1998), Ven (Meyer 2002, Nascimbene 2005c, Nascimbene & al. 2006, Thor & Nascimbene 2007), TAA (Meyer 2002, Nascimbene 2003), Lomb, Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1999), Emil (Meyer 2002, Dalle Vedove & al. 2002, Fariselli & al. 2020), Lig (Meyer 2002, Giordani & al. 2016). C - Tosc (Meyer 2002, Benesperi 2006, Tretiach & al. 2008), Marc (Nimis & Tretiach 1999, Meyer 2002), Umb (Genovesi & Ravera 2001, Ravera & al. 2006), Laz (Bartoli & al. 1998, Roccardi 2011), Abr (Nimis & Tretiach 1999), Mol (Nimis & Tretiach 1999, Caporale & al. 2008), Sar (Meyer 2002). S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl (Nimis & Tretiach 1999, Meyer 2002, Durini & Medagli 2002, 2004), Bas (Bartoli & Puntillo 1998, Nimis & Tretiach 1999, Potenza 2006), Cal (Puntillo 1996), Si (Nimis & al. 1994, Ottonello & Salone 1994, Ottonello & al. 1994, Ottonello 1996, Grillo 1998, Caniglia & Grillo 2001, 2005, 2006, Grillo & al. 2001, 2002, 2009, Meyer 2002, Grillo & Caniglia 2004, Liistro & Cataldo 2011).
Description: Thallus crustose, fully endolithic, poorly evident. Apothecia lecideine, 0.3-0.7 mm across, deeply immersed in pits in the rock, with a flat, black disc (sometimes thinly white pruinose) and a thin, black, persistent proper margin. Epithecium red-brown; hymenium colourless, I+ partly pale blue; paraphyses branched and slightly anastomosing, septate, scarcely swollen at apex; hypothecium brown, I-. Asci 8-spored, elongate-clavate, Porpidia-type. Ascospores 1-celled, hyaline, ellipsoid, 10-19 x 6-9 µm, with a gelatinous perispore when young, and with a warted ornamentation when old. Photobiont chlorococcoid. Spot tests: all negative. Chemistry: no lichen substances.
Note: a widespread, temperate to southern boreal-montane lichen found on a wide variety of calciferous rocks, especially limestone, with a wide altitudinal range.
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: very rare
Subalpine belt: rare
Oromediterranean belt: rather rare
Montane belt: rather common
Submediterranean belt: very common
Padanian area: very rare
Humid submediterranean belt: very common
Humid mediterranean belt: common
Dry mediterranean belt: 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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P.L. Nimis CC BY SA 4.0
TSB 15561


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15561)
2001/11/23


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (22347)
2001/12/09