Lecania spadicea (Flot.) Zahlbr.

Lecania spadicea (Flot.) Zahlbr.

Denkschr. K. Akad. Wissensch., math.-naturw. Kl., 92: 316, 1915. Basionym: Lecanora spadicea Flot. - Linnaea, 22: 362, 1849.

Synonyms: Bayrhofferia spadicea (Flot.) Trevis.; Lecania spadicea var. gennarii (Bagl.) J. Steiner; Ricasolia gennarii Bagl.

Distribution: C - Tosc, Laz (Bartoli & al. 1998), Abr, Sar. S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Nimis & al. 1994, Ottonello & Salone 1994, Ottonello & al. 1994, Monte & Ferrari 1996, Ottonello 1996, Grillo 1998, Caniglia & Grillo 2001, 2005, 2006, Grillo & al. 2001, Grillo & Caniglia 2004, Grillo & al. 2009).

Description: Thallus crustose-subplacodioid, episubstratic, up to 300 µm thick, areolate-warted, pale to dark brown, often white-pruinose, especially in sun-forms, the areoles contiguous, usually convex, (0.5-)1-2 mm wide, the marginal ones subsquamulose, elongated and more or less clearly radiating. Cortex paraplectenchymatous, brown in upper part, sometimes with an epinecral layer; algal layer well-distinct; medulla white, thick, I-. Apothecia lecanorine, 0.7-1.8 mm across, with a brown to brown-black, usually white-pruinose, flat to slightly convex disc and a usually paler, sometimes finally excluded thalline margin. Thalline exciple corticate, with an epinecral layer, rich in algal cells; proper exciple thin, colourless to pale brown in upper part; epithecium orange-brown to reddish brown, with a colourless epipsamma, K- or K+ purple-red; hymenium colourless to patchily orange-brown, (40-)50-80 µm high, K/I+ blue; paraphyses simple or sparingly branched, 1.5-2 µm thick at mid-level, the apical cells only slightly swollen, some of them with a brown cap; hypothecium colourless to pale brown. Asci 8-spored, cylindrical to narrowly clavate, with a K/I+ blue tholus and a central non-amyloid area, Bacidia-type. Ascospores 1(-2)-septate, hyaline, ellipsoid, straight or slightly curved, thin-walled, (8-)10-14(-16) x (3-)4-6 µm, without a gelatinous perispore. Pycnidia black, immersed. Conidia thread-like, straight or slightly curved, up to 20 µm long. Photobiont chlorococcoid. Spot tests: thallus K-, P-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly Mediterranean lichen found on inclined surfaces of compact calciferous rocks at relatively low elevations, especially common on walls in villages; mainly Tyrrhenian in Italy.

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: absent

Submediterranean belt: extremely rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: 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

P.L. Nimis CC BY-SA 4.0

TSB 17020

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

Herbarium: TSB (17020)
2001/12/09
apothecium

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

Herbarium: TSB (38253)
2008.02.25

A. Moro; Owner: Department of Life Sciences, University of Trieste

Sicilia, TP, Erice, dintorni della città
2008.04.05

A. Moro; Owner: Department of Life Sciences, University of Trieste

Sicilia, TP, Erice, dintorni della città
2008.04.05

A. Moro; Owner: Department of Life Sciences, University of Trieste

Sicilia, TP, Erice, dintorni della città
2008.04.05

A. Moro; Owner: Department of Life Sciences, University of Trieste

Sicilia, TP, Erice, dintorni della città
2008.04.05

A. Moro; Owner: Department of Life Sciences, University of Trieste

Sicilia, TP, Erice, dintorni della città
2008.04.05

A. Moro; Owner: Department of Life Sciences, University of Trieste

Sicilia, TP, Segesta, presso i templi
2008.04.05

Pier Luigi Nimis

Italy, Sicily, Trapani, Erice, old city walls near the Castle
12/2016

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

Herbarium: TSB (17020)
2001/12/09
apothecia

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

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