Staurothele sapaudica Asta, Clauzade & Cl. Roux

Trav. Sci. Parc Natl. Vanoise, 6: 89, 1975.
Synonyms:
Distribution: N - Ven (Nascimbene & al. 2021), TAA (Nascimbene & al. 2022).
Description: Thallus crustose, endosubstratic, continuous, grey to grey-brown, sometimes delimited by a very thin, grey-black prothalline line. Perithecia globose, 0.2-0.4 mm across, at first completely immersed in the rock, then 1/3 projecting. Exciple black throughout; involucrellum present, black, 0.2-0.4 mm wide, mostly superficial, forming a small, convex, smooth projection around the ostiole; hymenial gel I+ red (I+ blue at very low concentrations of iodine), K/I+ blue; hymenial algae bacilliform, 3-14 x 1-3 μm, straight or rarely slightly curved; hamathecium of periphyses and periphysoids, interascal filaments absent. Asci (6-)8-spored, clavate, the wall thickened above, with an ocular chamber, after dehiscence with a delicate extruded endotunica, I-, K/I-. Ascospores muriform, at first hyaline, then pale pinkish brown, ellipsoid or slightly pointed, 24-38 x 14-20 μm. Photobiont chlorococcoid, present in both thallus and hymenium. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: on periodically moist calcareous rocks, e.g. along streams at high elevations, or in shaded--humid situations; described from the Western Alps (France), with recent records from the Italian Dolomites.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: extremely rare
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely 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


Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



P.L. Nimis
TSB 42610



P.L. Nimis
TSB 42610



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



P.L. Nimis
TSB 42610



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy



Juri Nascimbene CC BY-SA 4.0
Trentino-Alto Adige, TN, Mountains abive Paneveggio, 2600 m, on calciferous rocks; altitude: Italy