ITALIC 8.0

Buellia schaereri De Not.

Giorn. Bot. Ital., 2: 199, 1846.

Synonyms: Buellia destructans (Tobler) R. Sant.; Buellia nigritula (Nyl.) Mudd; Karschia destructans Tobler; Lecidea nigritula Nyl.

Distribution: N - VG, Frl, Ven (Nascimbene & Caniglia 2000, 2003c, Nascimbene & al. 2006e, Nascimbene & Marini 2007), TAA (Nascimbene 2006b, 2006c, 2008b, 2013, 2014, Nascimbene & al. 2006, 2006e, 2007b, 2009, 2010, 2014, 2022, Stofer 2006, Nimis & al. 2015, Trindade & al. 2021), Lomb, Piem (Isocrono & al. 2004), Emil (Nimis & al. 1996, Fariselli & al. 2020), Lig (TSB 33052). C - Tosc (Putortì & Loppi 1999, Brunialti & Frati 2010, Brunialti & al. 2012b), Marc (Nimis & Tretiach 1999), Laz, Abr (Nimis & Tretiach 1999), Mol (Nimis & Tretiach 1999, Caporale & al. 2008). S - Camp (Aprile & al. 2002, 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Cal (TSB 13945).

Description: Thallus crustose, often almost entirely hidden in the substrate, sometimes thinly episubstratic and rimose, appearing as a grey-white to olive-brown patch. Medulla poorly developed, I-. Apothecia lecideine (0.1-)0.2-0.3(-0.5) mm across, soon sessile, with a black, epruinose, at first flat then soon convex disc, and a thin, soon excluded proper margin. Proper exciple narrow, poorly differentiated, Aethalea-type, the inner hyphae hyaline, prosoplectenchymatous, the outer hyphae parallel and usually strongly brown-pigmented; epithecium brown, N-; hymenium colourless, 35-60 µm high, not inspersed with oil droplets; paraphyses simple to moderately branched, the apical cells swollen, with a brown cap; 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, soon brown, ellipsoid with obtuse ends, not constricted at septum, 6-10(-12) x 2.5-4(-4.5) µm, Buellia-type, thin-walled throughout, the wall not ornamented. Pycnidia often numerous, globose, unilocular. Conidia very short, oblong to ellipsoid, some of them almost globose, 1.5-3 x 0.5-1(-1.4) µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly cool-temperate to boreal-montane, circumpolar species found on acid bark, especially of conifers, and on wooden poles in upland areas, to be looked for further in the mountains of Southern Italy.

Growth form: Crustose

Substrata: bark and lignum

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: rather common

Oromediterranean belt: absent

Montane belt: rather rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: absent

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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 04

TSB 13376

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)

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

Herbarium: TSB (13376)
2001/11/22

Marta González García

Spain, Asturias, Carballeda del Tragamón (Gijón), on Castanea
23.11.2022

Marta González García

Spain, Asturias, Carballeda del Tragamón (Gijón), on Castanea
23.11.2022

Marta González García

Spain, Asturias, Carballeda del Tragamón (Gijón), on Castanea
23.11.2022

Marta González García

Spain, Asturias, Carballeda del Tragamón (Gijón), on Castanea
23.11.2022

Marta González García

Spain, Asturias, Carballeda del Tragamón (Gijón), on Castanea
23.11.2022