Buellia saxorum A. Massal.

Buellia saxorum A. Massal.

Ric. Auton. Lich. Crost.: 82, fig. 169, 1852.

Synonyms: Buellia superans (Nyl.) Mong.; Lecidea saxorum (A. Massal.) Hepp; Lecidea superans Nyl.

Distribution: N - Ven (Lazzarin 2000b), Lig. C - Tosc, Sar (B-189700). S - Cal (CLU 12860).

Description: Thallus crustose, episubstratic, rather thin, rimose or areolate, white to pale grey, often forming more than 5 cm wide patches, sometimes delimited from conspecific thalli by a black prothallus. Medulla amyloid, I+ blue. Apothecia lecideine, black, 0.4-0.8 mm across, sessile and constricted at base, with a flat to convex disc and a thick, prominent, persistent, often sinuous proper margin. Proper exciple c. 100 µm wide, Leptocline-type, homogeneously dark brown, with an additional orange pigment reacting K+ reddish (solution), the inner part of long-celled, interwoven hyphae, the outer part of long-celled, parallel, strongly agglutinated and thick-walled hyphae; epithecium brown; hymenium colourless, without oil droplets, c. 80 µm high; hypothecium dark reddish brown. 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, oblong, constricted at septum, (10-)12-15(-18) x (5-)6-8(-9) µm, Physconia-type, with a microrugulate ornamentation. Pycnidia often numerous, flask-shaped, black, immersed. Conidia bacilliform, straight, 4.5-7.5(-9) x c. 1 µm. Photobiont chlorococcoid. Spot tests: thallus K+ yellow, C+ red, KC+ red, P- or P+ very faintly yellow, UV-. Chemistry: atranorin, gyrophoric acid and traces of lecanoric acid.

Note: on steeply inclined surfaces of hard siliceous rocks, mostly not far from the coast.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: extremely rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: absent

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_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

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

Herbarium: TSB (13038)
2001/11/22

Felix Schumm - CC BY-SA 4.0

[TSB_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

Felix Schumm - CC BY-SA 4.0

[TSB_13038], Italy, Tuscany, Island of Capraia, loc. Torre del Porto, c. 20 m on trachyandesitic rocks near the sea. Leg. P.L. Nimis, M. Tretiach & M. Castello, 29.03.1988. Rev. Ch. Scheidegger

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

France, Bonifacio, Golfe de Rundinara alt 10m - Corse
28/3/2016

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

France, Bonifacio, Golfe de Rundinara alt 10m - Corse
28/3/2016

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

France, Bonifacio, Golfe de Rundinara alt 10m - Corse
28/3/2016

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

France, Bonifacio, Golfe de Rundinara alt 10m - Corse
28/3/2016

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

France, Bonifacio, Golfe de Rundinara alt 10m - Corse
28/3/2016

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

France, Bonifacio, Golfe de Rundinara alt 10m - Corse
28/3/2016

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Porz Caro

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Porz Caro

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Porz Caro

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Porz Caro

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Porz Caro

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Porz Caro

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Pointe du Guern

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Pointe du Guern

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=128&lang=en

France, Pointe du Guern

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