ITALIC 8.0

Buellia uberior Anzi

Atti Soc. Ital. Sc. Nat. Milano, 9: 252, 1866.

Synonyms: Buellia atrocinerea (Anzi) Zahlbr.; Buellia contermina Arnold; Buellia lactea var. atrocinerea Anzi; Buellia malmei auct.; Buellia nitida Eitner

Distribution: N - Frl (Tretiach & Hafellner 2000), Ven, TAA (Nascimbene & al. 2022), Lomb, VA (Piervittori & Isocrono 1999). C - Tosc, Sar (Scheidegger 1993).

Description: Thallus crustose, episubstratic, often growing on the thalli of Schaereria fuscocinerea, pale to dark grey, shiny, areolate, the areoles 0.3-0.8 mm wide, forming 1-4(-5) cm wide patches, often delimited by a dark prothallus. Cortex of anticlinally arranged, cellular hyphae, the terminal cells swollen, with brown caps; medulla white, I+ blue. Apothecia black, cryptolecanorine to zeorine, 0.2-0.8(-1) mm across, immersed in the areoles, with a black, epruinose, mostly flat disc and an indistinct proper margin. Proper exciple thin, Aethalea-type, the inner hyphae hyaline, prosoplectenchymatous, the outer hyphae parallel and usually strongly brown- to olive-pigmented, N+ reddish; epithecium olive-green to olive-brown, N+ red; hymenium colourless, not inspersed with oil droplets, 42-70 µm high; hypothecium colourless to medium 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, constricted at septum, brown, broadly oblong, 8-12(-14) x 4.5-7 µm, Buellia-type, the wall >1.5 µm thick, with a striate ornamentation. Pycnidia black, immersed in the thallus. Conidia bacilliform, 3.5-5(-7) x 0.5-1 µm. Photobiont chlorococcoid. Spot tests: thallus K- or K+ yellow-orange, C+ red, KC+ red, P- or P+ faintly orange. Chemistry: gyrophoric acid (major), variable amounts of stictic acid.

Note: a mainly arctic-alpine, circumpolar species found on hard, lime-free siliceous rocks, predominantly on inclined to subvertical faces wetted by rain in upland areas, with optimum above treeline; the species is most common in the Alps, rarer in the high Mediterranean mountains, and seems to be facultatively parasymbiontic.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

paras Schaereria fuscocinerea

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: very rare

Oromediterranean belt: extremely rare

Montane belt: extremely rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

TSB 42098

P.L. Nimis CC BY-SA 4.0

TSB 42098

P.L. Nimis CC BY-SA 4.0

TSB 42098

P.L. Nimis CC BY-SA 4.0

TSB 42098

Identifier https://lichenpor...1536635131_lg.jpg