Buellia ocellata (Flot.) Körb.

Buellia ocellata (Flot.) Körb.

Syst. Lich. Germ.: 224, 1855. Basionym: Lecidea petraea var. ocellata Flot. - Flora, 11: 691, 1828.

Synonyms: Buellia arcularum (Harm.) Lettau; Buellia frisiaca Erichsen; Buellia verruculosa auct. non (Sm.) Mudd; Lecanora victoris Harm.; Lecidea arcularum Harm.; Lecidea kaleida Taylor; Lecidea ocellata subsp. praeponens Nyl.; Rinodina microphthalma A. Massal.; Rinodina ocellata (Flot.) Branth & Rostr. non (Hoffm.) Arnold; Rinodina victoris (Harm.) H. Olivier

Distribution: N - Ven, TAA, Lomb, Piem (Isocrono & al. 2004), Lig. C - Tosc, Abr (Nimis & Tretiach 1999), Sar (Scheidegger 1993, Rizzi & al. 2011). S - Si (Scheidegger 1993, Grillo 1998, Grillo & Caniglia 2004).

Description: Thallus crustose, episubstratic, areolate, pale green grey to yellowish grey, epruinose, sometimes delimited by a black prothallus, forming 1-2(-5) cm wide patches, the areoles rather small, 0.2-1(-1.3) mm wide, flat to convex; medulla white, I-. Apothecia lecideine, 0.2-0.5 mm across, immersed, with a black, flat, epruinose disc and a thin, externally poorly visible proper margin, sometimes surrounded by a thalline collar. Proper exciple poorly developed, Aethalea-type, the inner hyphae hyaline, prosoplectenchymatous, the outer hyphae parallel and usually strongly brown-pigmented; epithecium, brown to olive, N+ red; hymenium colourless to pale brown, greenish in lower part, not inspersed with oil droplets, 80-100(-120) μm high; paraphyses simple; hypothecium pale brown to brown, greenish in upper part. Asci 8-spored, clavate to cylindrical-clavate, the apical dome K/I+ dark blue with a pale, conical-pointed apical cushion (axial mass), the wall I-, but the thin outer gel I+ blue, Bacidia-type. Ascospores 1-septate, brown, ellipsoid, thin-walled throughout, (11-)13-17(-21) x 6.5-9(-11.5) μm, Buellia-type, uniformly thin-walled, the wall microrugulate. Pycnidia black, immersed. Conidia 4-5.5(-6) x 0.8-1 µm. Photobiont chlorococcoid. Spot tests: thallus K-, C+ persistently orange, P-, UV-. Chemistry: xanthones, especially arthothelin.

Note: a temperate, perhaps holarctic species found on small siliceous pebbles, but also on steeply inclined faces near the ground, below the subalpine belt.

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: extremely rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: extremely rare

Dry mediterranean belt: extremely rare

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

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

P.L. Nimis CC BY-SA 4.0

TSB 21723

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_21723], Italia, Sardinia, Prov. Oristano, M. Ferru, on siliceous rocks which are inundated for short periods after rain. Leg. P:L. Nimis, 09.1989. Rev. Ch. Scheidegger

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (21723)
2001/11/22

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B2/Buellia_ocellata.htm

France, Saint-Sauveur-la-Sagne, alt. 8440 m - Puy-de-Dôme - (63) - saxicole, calcifuge, sur roche acide métamorphisée.
9/6/2015

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B2/Buellia_ocellata.htm

France, Saint-Sauveur-la-Sagne, alt. 8440 m - Puy-de-Dôme - (63) - saxicole, calcifuge, sur roche acide métamorphisée.
9/6/2015

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B2/Buellia_ocellata.htm

France, Saint-Sauveur-la-Sagne, alt. 8440 m - Puy-de-Dôme - (63) - saxicole, calcifuge, sur roche acide métamorphisée.
9/6/2015

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B2/Buellia_ocellata.htm

France, Saint-Sauveur-la-Sagne, alt. 8440 m - Puy-de-Dôme - (63) - saxicole, calcifuge, sur roche acide métamorphisée.
9/6/2015

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B2/Buellia_ocellata.htm

France, Saint-Sauveur-la-Sagne, alt. 8440 m - Puy-de-Dôme - (63) - saxicole, calcifuge, sur roche acide métamorphisée.
9/6/2015

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B2/Buellia_ocellata.htm

France, Saint-Sauveur-la-Sagne, alt. 8440 m - Puy-de-Dôme - (63) - saxicole, calcifuge, sur roche acide métamorphisée.
9/6/2015

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=110&lang=en

France, Porz Tinduff

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=110&lang=en

France, Porz Tinduff

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=110&lang=en

France, Porz Tinduff

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=110&lang=en

France, Porz Tinduff

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=110&lang=en

France, Porz Tinduff

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=110&lang=en

France, Porz Tinduff

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