Calicium glaucellum Ach.
Meth. Lich.: 97, 1803.
Synonyms: Calicium discoidale Ach.
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.
Growth form: Crustose
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
Montane belt: rather rare
Dry submediterranean belt: very rare
Humid submediterranean belt: rare
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map

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

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.

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.
Growth form: Crustose
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
Montane belt: rather rare
Dry submediterranean belt: very rare
Humid submediterranean belt: rare
Padanian area: absent
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map

