Caloplaca isidiigera Vězda

Folia Geobot. Phytotaxon., 13: 417, 1978.
Synonyms:
Distribution: N - Frl (TSB 26480), Ven (TSB 19719), TAA (Šoun & al. 2011, Nascimbene & al. 2022), Lomb, Piem. C - Abr (TSB 24914).
Description: Thallus crustose, episubstratic, areolate, up to 0.5(-0.8) mm thick, pale to very dark grey or almost black in sun-forms, usually with a bluish tinge, often delimited by a narrow, black prothallus. Areoles at first convex, then flat, up to 2 mm wide, isidiate; isidia arising mainly from margins, but soon covering the whole surface, globose to shortly elongated and almost coralloid, concolorous with thallus, in average 82 μm. Upper cortex paraplectenchymatous; medulla poorly developed. Apothecia lecanorine, up to 1.3(-1.5) mm across, sessile, with a flat to slightly convex, pale to dark orange disc and a thick, raised, sometimes crenulate or isidiate thalline margin. Proper exciple indistinct, up to 10 μm thick, prosoplectenchymatous; epithecium orange, with inspersed granules, K+ red; hymenium colourless, 55-85 μm high; paraphyses simple to sparingly branched in upper part, c. 2 μm thick at base, the uppermost cells slightly swollen, 3(-5) μm wide; hypothecium colourless. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, ellipsoid, 10-15 x 5-8 μm, the equatorial thickening (“septum”) 3-7 μm (c. 1/3 of spore length). Pycnidia rare, immersed. Conidia bacilliform, c. 3 x 1 μm. Photobiont chlorococcoid. Spot tests: thallus K- or K+ faintly violet, C- or C+ violet, KC-, P-; disc of apothecia K+ red. Chemistry: thallus with the Sedifolia-grey pigment; disc of apothecia with parietin (major), fallacinal, emodin, teloschistin and parietinic acid (minor).
Note: a calcicolous species of nutrient-enriched rocks in upland areas. See also note on C. chlorina.
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: very rare
Subalpine belt: rather rare
Oromediterranean belt: absent
Montane belt: absent
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


Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19593], Bohemoslovacia, Slovacia, montes Carpatorum, Tatra Minor, in monte Velký bok., alt. 1550 m, ad saxa calcarea. Leg. A. Vezda, 9.1974. VEZDA: LICHENES SELECTI EXSICCATI NR. 1494.



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern


Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C/Caloplaca_isidiigera.htm
France, session AFL 2014 dans le Mercantour - Alpes-de-Haute-Provence


Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C/Caloplaca_isidiigera.htm
France, session AFL 2014 dans le Mercantour - Alpes-de-Haute-Provence