Calicium glaucellum Ach.

Meth. Lich.: 97, 1803.
Synonyms: Calicium discoidale Ach.
Distribution: N - Frl (Puntillo & Puntillo 2009), Ven (Nascimbene 2008c), TAA (Nascimbene 2008b, 2013, Nascimbene & al. 2009, 2010, 2022, Nimis & al. 2015), Emil (Benesperi 2009, Fariselli & al. 2020), Lig (Herb. von Brackel 22). C - Tosc (Benesperi 2007, Puntillo & Puntillo 2009), Marc (Nimis & Tretiach 1999, Umb (Ravera 1998, Ravera & al. 2006, Puntillo & Puntillo 2009), Laz (Ravera 2001, Puntillo & Puntillo 2009), Abr (Puntillo & Puntillo 2009), Sar (Zedda 2002, 2002b, Puntillo & Puntillo 2009, Cossu 2013). S - Camp (Puntillo & Puntillo 2009), Cal (Puntillo 1994, 1996, Puntillo & Puntillo 2009).
Description: Thallus crustose, thin, endosubstratic and poorly evident or rarely thinly episubstratic and granular-verrucose, dark grey-green. Apothecia stalked, pin-like, black with a thin whitish pruina which is most abundant at the edge and on the lower side of capitulum, or more rarely epruinose. Stalk shiny black, sometimes white-pruinose in the uppermost part, 0.5-0.9 mm high, 0.1-0.2 mm thick, of strongly sclerotized, dark brown to dark aeruginose, irregularly interwoven hyphae, the outer layer covered with a thin, transparent gelatinous sheath. Capitulum lenticular to obovoid, 0.2-0.35 mm across, with a well-developed, cup-shaped exciple formed by dark brown to aeruginose, elongated to almost isodiametric, anticlinally arranged, sclerotized hyphae which are paler close to the surface; mazaedium well developed, black; hypothecium dark, with a flat or slightly convex upper surface. Asci cylindrical, formed singly, dissolving early, with uniseriate ascospores. Ascospores 1-septate, dark brown, ellipsoid, 9-13 x 5-7 µm, with a thick, ornamented wall; young spores with mainly longitudinally arranged ridges, mature spores with irregular cracks and short ridge fragments. Photobiont chlorococcoid. Spot tests: thallus K- or K+ dull yellow, C-, KC-, P-; ascomata I- in all parts. Chemistry: thallus with sekikaic acid (major) and related compounds.
Note: a temperate to boreal-montane, holarctic species found on lignum and on acid bark, especially on decorticated stumps of conifers, but also on broad-leaved trees, e.g. on Castanea, widespread throughout Italy.
Growth form: Crustose
Substrata: bark and 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: absent
Oromediterranean belt: absent
Montane belt: rather rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: rare
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


Domenico Puntillo CC BY-SA 4.0



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



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


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; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11888)
2001/12/05



Domenico Puntillo - CC BY-SA 4.0
Italy, Calabria



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41541



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41543



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41542



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41543



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41543



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41543


Andres Saag; Owner: University of Tartu


Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C3/Calicium_glaucellum.htm
France, 22/8/2016 - session AFL dans le Jura


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany; Rheinland-Pfalz: Hunsrück.



Felix Schumm - CC BY-SA 4.0
[108], Germany, Baden-Württemberg, Kreis Göppingen, In der Nähe des Herrenbachs bei der Mittelmühle unterhalb Kloster Adelberg, Stubensandsteingebiet, an Fraxinus excelsior, TK: 7223. Leg. F. Schumm, 05.05.1968, det. V. Wirth. - Thallus K-; Sporen dunkel, zweizellig, (10-12) x 6 μm, Köpfchen J-.



Felix Schumm - CC BY-SA 4.0
[108], Germany, Baden-Württemberg, Kreis Göppingen, In der Nähe des Herrenbachs bei der Mittelmühle unterhalb Kloster Adelberg, Stubensandsteingebiet, an Fraxinus excelsior, TK: 7223. Leg. F. Schumm, 05.05.1968, det. V. Wirth. - Thallus K-; Sporen dunkel, zweizellig, (10-12) x 6 μm, Köpfchen J-.



Felix Schumm - CC BY-SA 4.0
[4196], Germany, Baden-Württemberg, Kreis Ludwigsburg, im Krummbachtal zwischen Büsnau und Gerlingen, Waldrand östl. des Rappenhofes; ca. 430 m, auf entrindetem altem ca. 2m hohen Baumstumpf, sonnig und trocken, TK: 7220/NW. Leg. et det. F. Schumm, 02.05.1995.- Sporen schwarz, grob schollig warzig, zweizellig, in der Mitte etwas eingeschnürt, 10,2 x (3,4-5,1) μm; Stiel und Apothecium J-; Th. K+ mit unklarer braunroter Reaktion (vielleicht auch nur Holzfärbung); Mazädium am Rd. weiß bereift.



Felix Schumm - CC BY-SA 4.0
[4196], Germany, Baden-Württemberg, Kreis Ludwigsburg, im Krummbachtal zwischen Büsnau und Gerlingen, Waldrand östl. des Rappenhofes; ca. 430 m, auf entrindetem altem ca. 2m hohen Baumstumpf, sonnig und trocken, TK: 7220/NW. Leg. et det. F. Schumm, 02.05.1995.- Sporen schwarz, grob schollig warzig, zweizellig, in der Mitte etwas eingeschnürt, 10,2 x (3,4-5,1) μm; Stiel und Apothecium J-; Th. K+ mit unklarer braunroter Reaktion (vielleicht auch nur Holzfärbung); Mazädium am Rd. weiß bereift.



Felix Schumm - CC BY-SA 4.0
[19311], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, zwischen Rotkreuz und Herrenmühle bei einer Waldhütte an Laubbaum, ca. 48.7512° N, 9.5819° E, 482 m. Leg. F. Schumm, 27.03.2015, det. Schumm. - Gehäuse am Rand ganz leicht weiß bereift, Stil und Excipulum J-. Sporen grün-schwarz, 2-zellig, feinwarzig, 10-12 x 4-5 μm, mitunter etwas eingeschnürt.



Felix Schumm - CC BY-SA 4.0
[19311], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, zwischen Rotkreuz und Herrenmühle bei einer Waldhütte an Laubbaum, ca. 48.7512° N, 9.5819° E, 482 m. Leg. F. Schumm, 27.03.2015, det. Schumm. - Gehäuse am Rand ganz leicht weiß bereift, Stil und Excipulum J-. Sporen grün-schwarz, 2-zellig, feinwarzig, 10-12 x 4-5 μm, mitunter etwas eingeschnürt.



Felix Schumm - CC BY-SA 4.0
[VZ1426], Suecia, Böda Paroecia, prope Grankulla. Ad truncum decorticatum emortuum Pini sylvestris. Leg. R. Santesson (no 16341a), 02.07.1964, det. L. Tibell. EX A. V ZDA: LICHENES SELECTI EXSICCATI NR. 1426.


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


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



Felix Schumm - CC BY-SA 4.0
[VZ1426], Suecia, Böda Paroecia, prope Grankulla. Ad truncum decorticatum emortuum Pini sylvestris. Leg. R. Santesson (no 16341a), 02.07.1964, det. L. Tibell. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 1426.



Felix Schumm - CC BY-SA 4.0
[VZ1426], Suecia, Böda Paroecia, prope Grankulla. Ad truncum decorticatum emortuum Pini sylvestris. Leg. R. Santesson (no 16341a), 02.07.1964, det. L. Tibell. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 1426.



Felix Schumm - CC BY-SA 4.0
[VZ1426], Suecia, Böda Paroecia, prope Grankulla. Ad truncum decorticatum emortuum Pini sylvestris. Leg. R. Santesson (no 16341a), 02.07.1964, det. L. Tibell. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 1426.



Felix Schumm - CC BY-SA 4.0
[VZ2204], Italia. Sardinia. Prov. Nuoro: Catena del Marghine, Badde Salighes, Villa Piercy, 950 m. Ad corticem Thujae cult. Leg. P. L. Nimis, J. Poelt et A. Vezda, 18.7.1987, det. L. Tibell. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2203.



Felix Schumm - CC BY-SA 4.0
[VZ2204], Italia. Sardinia. Prov. Nuoro: Catena del Marghine, Badde Salighes, Villa Piercy, 950 m. Ad corticem Thujae cult. Leg. P. L. Nimis, J. Poelt et A. Vezda, 18.7.1987, det. L. Tibell. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2203.



Felix Schumm - CC BY-SA 4.0
[VZ2282], Gallia. Dept. Vosges: Kruth, summo montis Tête du Chat Sauvage dicti, 1000 m. Ad lignum Abies albae. Leg. E. Sérusiaux (no. 7340) et F. Rose, 65.1985. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2282.



Felix Schumm - CC BY-SA 4.0
[VZ2282], Gallia. Dept. Vosges: Kruth, summo montis Tête du Chat Sauvage dicti, 1000 m. Ad lignum Abies albae. Leg. E. Sérusiaux (no. 7340) et F. Rose, 65.1985. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2282.