Lecania suavis (Müll. Arg.) Mig.

Krypt. Fl. Deutsch., Österr. u. Schweiz, 11: 331, 1926. Basionym: Callopisma suave Müll. Arg. - Flora, 55: 472, 1872.
Synonyms: Lecania tavaresiana Clauzade & Vězda
Distribution: N - TAA (Etayo & van den Boom 1995), Lomb (Valcuvia 2002, 2002b), Piem, Lig (Valcuvia & al. 2000). C - Sar.
Description: Thallus crustose, episubstratic, rimose to areolate, yellowish white to reddish brown, rarely dark brown in very exposed sites; areoles of different sizes on the same thallus, usually convex. Apothecia lecanorine, 0.5-1.2 mm across, with a flat to finally convex, orange-brown to brown-black, sometimes grey-pruinose disc, a more or less concolorous, at first rather thick, finally sometimes excluded thalline margin, and often a darker pigmented proper margin visible between disc and thalline margin. Thalline exciple corticate, the cortex pseudoparenchymatous, of isodiametric cells; proper exciple of dark-pigmented, elongated hyphae; epithecium orange brown to dark brown, the pigment extending into the upper parts of hymenium, with a thin epipsamma; hymenium colourless or brownish, 45-65 μm high; paraphyses capitate, the apical cells 8-10 μm wide; hypothecium colourless. Asci 8-spored, narrowly clavate, Bacidia-type. Ascospores 3-septate, hyaline, ellipsoid, (13-)16-20(-22) x (3-)4-4.5 μm. Photobiont chlorococcoid. Spot tests: thallus and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: on steeply inclined to underhanging surfaces of calcareous rocks, often near small cracks, but also on walls of mortar, usually below the montane belt; much overlooked and confused with other species in Italy, and probably more common.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: very rare
Montane belt: very rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: very rare
Humid mediterranean belt: extremely rare
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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Source: http://fungi.myspecies.info/all-fungi/lecania-suavis - CC BY-NC


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


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