ITALIC 8.0

Sarcogyne distinguenda Th. Fr.

Bot. Notiser: 153, 1867

Synonyms:

Distribution: N - VG (Knudsen & al. 2023).

Description: Thallus crustose, episubstratic, 40-80 μm thick, greyish-white, continuous to finely rimose, ecorticate-farinose, consisting of gelatinized hyphae with scattered algae covering the substrate. Apothecia lecideine, sparse, circular in outline, 0.4-0.5 mm across, sessile, with a black (brown-red when moist), bluish-pruinose, flat to slightly convex disc, and a thin, usually persistent proper margin. Proper exciple 100-150 μm wide. subparaplectenchymatous, of radiating hyphae with swollen and dark brown tips, the rim dark brown, the inner part colourless; epithecium brown; hymenium colourless, 110-180 µm high, the hymenial gel hemiamyloid, K/I+ light blue fading to light red; paraphyses coherent, simple to sparingly branched, regularly septate; hypothecium colourless. Asci 100-200-spored, 80-100 μm long, cylindrical-clavate, strongly thickened at apex, the apical dome I-, the outer coat K/I+ blue. Ascospores 1-celled, hyaline, globose to broadly ellipsoid, 3-4.5 x 3-3.5 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on outcrops of limestone, calcareous sandstone and calciferous schists, sometimes on mortar; widespread in Europe but relatively rare, with several records from the Alps.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

P.L. Nimis

Italy, Conconello, mortar, S exposed wall
16.02.2024

P.L. Nimis

Italy, Conconello, mortar, S exposed wall
16.02.2024