Parvoplaca tiroliensis (Zahlbr.) Arup, Søchting & Frödén

Nord. J. Bot., 31: 49, 2013. Basionym: Caloplaca tiroliensis Zahlbr. - Annal. Mycol., 1: 360, 1903.
Synonyms: Caloplaca arctica H. Magn.; Caloplaca cerina f. flava (Anzi) Jatta; Caloplaca friesii H. Magn.; Caloplaca jungermanniae var. subolivacea Th. Fr.; Caloplaca subolivacea (Th. Fr.) Lynge; Placodium cerinum var. flavum Anzi
Description: Thallus crustose, pale grey to whitish, thin, continuous, often inconspicuous and poorly evident. Apothecia frequent, zeorine-biatorine, sessile, slightly constricted at base, 0.2-0.5(-1) mm across, the disc slightly concave to slightly convex, lemon-yellow, becoming greenish yellow to dark green, sometimes almost black in forms without anthraquinones, the proper margin thin, smooth, often paler than disc; a grey thalline margin is sometimes visible on the underside of the apothecia. Exciple of radiating hyphae, orange brown in outer part, colourless within; epithecium coarsely granular, K+ purple-red, or K- in forms devoid of anthraquinones; hymenium and hypothecium colourless; paraphyses c. 1.5 μm thick at base, the apical cells swollen, c. 4 μm wide. 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, (11-)14-17(-18) x (6-)7-9(-10.5) μm, the equatorial thickening (“septum”) 3-6 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; apothecia K+ purple-red or K- in the forms devoid of anthraquinones. Chemistry: apothecia usually with anthraquinones (parietin, fallacinal, emodin, teloschistin, and parietinic acid), sometimes without anthraquinones in black-fruited forms; blackened parts with the Cinereorufa-green pigment.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rather common
Subalpine belt: common
Montane belt: absent
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: 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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Rarity

absent
extremely rare
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Occurrence data
Predictive map
Model ImageCurrent prediction (1981-2010)
Model ImageFuture prediction (2071-2100) SSP 1-2.6
Model ImageFuture prediction (2071-2100) SSP 5-8.5
Predictive maps according to Francesconi et al. 2025

Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2485)
2001/11/19


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036333556], S-Iceland, Skaftafell. Leg. A. Aptroot (4567), 19.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036335574], Iceland, O-Island, Egilstadir. Leg. A. Aptroot (4557), 27.07.1980, det. A. Aptroot.


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Felix Schumm - CC BY-SA 4.0
[BR5030036339619], UK, South Shetland Islands, Deception Island, Whalers Bay, NE side of Cathedral Crags 50 m W of Neptunes Window, on steep N-exposed volcanic rocks, ca. 59 m,60°33’05’’ W, 62°59’23’’ S. Leg. W.O. van der Knaap (97-04),14.01.1991, det. A. Aptroot 1991. EXP.ARCTIC CENTRE, GRONINGEN


Pier Luigi Nimis - CC BY-SA 4.0
TSB 43990


P.L. Nimis CC BY-SA 04
TSB 37188


P.L. Nimis CC BY-SA 04
TSB 37188


P.L. Nimis CC BY-SA 04
TSB 37188


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_5/Parvoplaca_tiroliensis.htm
France, sur restes en décomposition de saxifrage - session AFL 2014