ITALIC 8.0

Gyalolechia marmorata (Bagl.) Nimis & Arup

in Arup & al., Borziana, 4: 45, 2023. Basionym: Callopisma marmoratum Bagl. - N. Giorn. Bot. Ital., 11: 84, 1879

Synonyms: Caloplaca marmorata (Bagl.) Jatta non auct.; Caloplaca subochracea auct.; Caloplaca subochracea f. acrustacea Clauzade & Cl. Roux; Caloplaca subochracea f. pallida Clauzade & Cl. Roux; Caloplaca subochracea var. luteococcinea Clauzade & Cl. Roux

Distribution: C - Tosc (Nascimbene & al. 2021), Laz (TSB 9972), Sar (Arup & al. 2023). S - Camp (Aprile & al. (2003b), Pugl (Nimis & Tretiach 1999, Arup & al. 2023), Cal (Puntillo 1996), Si (Nimis & al. 1994, Ottonello & Salone 1994, Ottonello & al. 1994, Grillo & al. 2002, Grillo & Caniglia 2004, Caniglia & Grillo 2005, 2006, Genco & al. 2007, Arup & al. 2023).

Description: Thallus crustose, very variable, from endosubstratic and poorly evident to episubstratic and finely rimose-areolate, white to pale yellow, often delimited by a thin, black prothalline line. Apothecia biatorine, at first immersed, then sessile, rounded, 0.2-1.3 mm across, with a rusty red to dark orange-red, at first flat, then convex, epruinose disc, and a somewhat paler, smooth, at first well-visible, finally often excluded proper margin. Epithecium brownish orange, K+ red; hymenium colourless, 40-60(-80) µm high; paraphyses simple or forked in upper part, c. 1 µm thick at base, the apical cells (2-)3-4.5 µm wide; hypothecium colourless. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, ellipsoid, (9-)10-13(-14) x (3-)5-6(-10) µm, the equatorial thickening (“septum”) up to 5 µm. Photobiont chlorococcoid. Spot tests: thallus K- or K+ faintly red; C-, KC-, P-; Apothecia K+ red. Chemistry: thallus without lichen substances or with low amounts of fragilin; apothecia with parietin and emodin (major), and citreorosein, emodinal, fallacinal and parietinic acid (minor).

Note: a Mediterranean species found on compact limestone, locally very abundant in coastal situations, rare far from the coast (Arup & al.2023).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: rather common

Dry mediterranean belt: rather 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

Michel Bertrand

France

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C5/Caloplaca_subochracea.htm

France, Sémaphore Pertusato, alt.100m - Corse
23/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C5/Caloplaca_subochracea.htm

France, Sémaphore Pertusato, alt.100m - Corse
23/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C5/Caloplaca_subochracea.htm

France, Sémaphore Pertusato, alt.100m - Corse
23/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C5/Caloplaca_subochracea.htm

France, Sémaphore Pertusato, alt.100m - Corse
23/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C5/Caloplaca_subochracea.htm

France, Sémaphore Pertusato, alt.100m - Corse
23/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C5/Caloplaca_subochracea.htm

France, Sémaphore Pertusato, alt.100m - Corse
23/10/2016

P.L. Nimis CC BY-SA 04

TSB 36720

P.L. Nimis

holotype of Callopisma marmoratum Bagl. 1879

P.L. Nimis CC BY-SA 4.0

Holotype of Callopisma marmoratum Bagl (MOD)

P.L. Nimis CC BY-SA 04

Herbarium: TSB 36720

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

Italy, Sardinia, Cagliari
09/06/2016
Holotype of Callopisma marmoratum Bagl (MOD)

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

Italy, Sardinia, Cagliari
09/06/2016
Holotype of Callopisma marmoratum Bagl (MOD)

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

Italy, Sardinia, Cagliari
09/06/2016
Holotype of Callopisma marmoratum Bagl (MOD)

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

Italy, Sardinia, Cagliari
09/06/2016
Holotype of Callopisma marmoratum Bagl (MOD)