Calicium trabinellum (Ach.) Ach.

Meth. Lich. Suppl.: 14, 1803. Basionym: Calicium xylonellum var. trabinellum Ach. - Meth. Lich.: 93, 1803.
Synonyms: Calicium adspersum var. trabinellum (Ach.) Schaer.; Calicium incrustans Körb.; Calicium validiusculum Trevis.
Distribution: N - Frl (Puntillo & Puntillo 2009), Ven (Nascimbene & al. 2006e, Nascimbene 2008c), TAA (Nascimbene 2006c, 2008b, 2013, 2014, Nascimbene & al. 2006, 2006e, 2007b, 2008c, 2014, 2022, Stofer 2006, Thor & Nascimbene 2007, Puntillo & Puntillo 2009, Nimis & al. 2015, Trindade & al. 2021), Lomb (Nascimbene & al. 2006e, Puntillo & Puntillo 2009), Piem (Isocrono & al. 2004, Puntillo & Puntillo 2009), VA (Puntillo & Puntillo 2018). C - Sar (Puntillo & Puntillo 2009).
Description: Thallus crustose, endosubstratic and poorly evident or rarely thinly episubstratic and granulose-verrucose, grey-green. Apothecia stalked, pin-like, black with a bright yellow pruina on the lower side of the capitulum. Stalk black, epruinose, 0.6-0.9 mm high, of irregularly interwoven hyphae, the central part dark brown or aeruginose, of heavily sclerotized hyphae, the outer layer covered with a thin, paler, non-amyloid gelatinous sheath. Capitulum lenticular to obovoid, with a well-developed, cup-shaped exciple of pale (in outer part) or dark (in inner part) cells; mazaedium well developed, black; hypothecium blackish brown, with a convex upper surface. Asci cylindrical, formed singly, dissolving early, with uniseriate ascospores. Ascospores 1-septate, dark brown, ellipsoid, 10-11 x 5-6 µm, with a thick, ornamented wall; young spores with mainly longitudinal ridges, old spores with irregular cracks and short ridge fragments. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; ascomata I- in all parts. Chemistry: thallus without lichen substances; yellow pruina with vulpinic acid.
Note: a holarctic, temperate to boreal-montane species found on hard wood, especially on old, decorticated stumps of conifers, more rarely of deciduous or even evergreen broad-leaved trees (e.g. Quercus ilex in montane forests), rarely on bark of conifers, to be looked for in the Apennines.
Growth form: Crustose
Substrata: lignum
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: rare
Oromediterranean belt: absent
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
Index Fungorum GBIF

Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2926)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2926)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2926)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2926)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (30459)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (30459)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (7906)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (7906)
2008.03.10



Juri Nascimbene - CC BY-SA 4.0
Paneveggio, Reg. Trentino-Alto Adige Prov. Trento, Italy.
2009



Domenico Puntillo - CC BY-SA 4.0
Italy



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2710)
2003/03/12



Domenico Puntillo - CC BY-SA 4.0
Italy



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41546



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41546



Domenico Puntillo CC BY-SA 4.0


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/


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=906&lang=en
France, Pyrénées, Font-Romeu