Glyphopeltis ligustica (B. de Lesd.) Timdal

Glyphopeltis ligustica (B. de Lesd.) Timdal

Mycotaxon, 31: 102, 1988. Basionym: Psora ligustica B. de Lesd. - Bull. Soc. Bot. France, 28: 82, 1936.

Synonyms: Glyphopeltis eburina Brusse; Xanthopsorella llimonae Hertel, Egea & Poelt

Distribution: N - Lig. C - Sar.

Description: Thallus of peltate, orbicular to irregular, scattered to crowded, cream-coloured to olivaceous brown squamules, starting the life-cycle on the thalli of Peltula-species. Squamules up to 17 mm in diam. and up to 1 mm thick, the upper surface smooth or often cracked, with an undulate margin. Lower surface reddish brown to brown-black, rugose, attached by a central holdfast or by centrally located, thick rhizohyphae. Upper cortex paraplectenchymatous, (45-)100-180 μm thick, often overlain by a thick epinecral layer; medulla white, prosoplectenchymatous, I-; lower cortex poorly developed, of periclinally arranged, dark hyphae. Apothecia lecideine, black, epruinose, rounded or irregular in outline, up to 1.2(-1.8) mm across, marginal or laminal, sessile and slightly constricted at base, with a strongly convex disc and a thin, soon excluded proper margin. Proper exciple of radially arranged hyphae; epithecium blue-green to green, without crystals, N+ purple; hymenium colourless, 40-65 μm high, I+ blue turning reddish; paraphyses simple or sparingly branched and anastomosing, 2-3.5 μm thick at base, the apical cells to 6 μm wide; hypothecium pale brown. Asci 8-spored, clavate, surrounded by a thin gelatinous sheath reacting I+ blue, with an amyloid tholus of finely superimposed layers and a darker tubular structure, approaching the Psora-type. Ascospores 1-celled, hyaline, broadly ellipsoid to subglobose, (6-)8-12(-15) x (4-)5-7.5 μm. Pycnidia globose, hyaline, immersed in the squamules. Conidia straight, bacilliform, 5-8 x c. 1 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-. Chemistry: low amounts of atranorin and an unidentified substance.

Note: on steeply inclined surfaces of siliceous rocks, growing on the thalli of Peltula-species in areas with frequent humid maritime winds; much less frequent than its hosts and mostly coastal in Italy.

Growth form: Squamulose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

On otherwise dry surfaces with short periods of water seepage after rain

paras Peltula euploca and P. placodizans

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: extremely rare

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

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987

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

Herbarium: TSB (9610)
2001/12/03
with the host, Peltula euploca

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

Felix Schumm - CC BY-SA 4.0

[TSB_9610], Italy, Sardinia, Prov. Nuoro, Torre Argentina near Bosa, on tuff, parasitic on Peltula euploca, c. 20 m. Leg. P.L. Nimis & M. Tretiach, 07.1987.

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

France, session AFL 2010 - Hérault

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

France, session AFL 2010 - Hérault

Source: Evankow, A.M., Yin, A., Zulfiqar, R. et al. Psora mediterranea (Lecanorales, Psoraceae), a new lichen species from Europe, including a new concept for P. himalayana and a revised key to the European species. Mycol Progress 24, 26 (2025). https://doi.org/10.1007/s11557-025-02045-8 - CC BY 4.0

Norway
South Africa, O-L-196708, Photo: E. Timdal

real
time web analytics