ITALIC 8.0

Buellia fusca (Anzi) Kernst.

Zeitschr. Ferdinandeums, 35: 306, 1893. Basionym: Buellia spuria var. fusca Anzi - Cat. Lich. Sondr.: 87, 1860.

Synonyms:

Distribution: N - TAA, Lomb (Bungartz 2004).

Description: Thallus crustose, episubstratic, areolate, brown to ochre-coloured, often glossy, without a distinct prothallus, the areoles small, angular, contiguous, with a smooth surface. Cortex of anticlinally arranged, cellular hyphae, the terminal cells swollen, with brown caps; medulla white, I-. Apothecia biatorine or cryptolecanorine, immersed in the areoles, black, 0.15-0.3 mm across, with a flat to convex disc and a thin, soon excluded proper margin. Proper exciple poorly differentiated, Aethalea-type, the inner hyphae narrow, hyaline, prosoplectenchymatous, the outer hyphae parallel, moderately swollen and usually strongly carbonized with brown and aeruginose pigments reacting N+ violet; epithecium brown; hymenium colourless, without oil droplets, c. 60 µm high; hypothecium dark 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, broadly oblong, not constricted at septum, 10-12 x 5-6 µm, Buellia-type, thin- and smooth-walled throughout. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: 2'-O-methylperlatolic acid.

Note: on vertical to rain-sheltered surfaces of siliceous rocks near the ground in warm-dry situations, such as in arid grasslands and in openings of Mediterranean garrigues; known only from the eastern Alps and the Pyrenees. Related to, and perhaps a synonym of B. tirolensis (see Bungartz 2004), but chemically different, this taxon needs further study.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

In underhangs rarely wetted by rain

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: extremely rare

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

Index Fungorum GBIF

Domenico Puntillo; Owner: Department of Life Sciences, University of Trieste

Italy, Basilicata, Potenza, Monte Volturino, leg. D. Puntillo 1750 m on acid rocks.
Herbarium: CLU (16524)
07.08.2012

Domenico Puntillo; Owner: Department of Life Sciences, University of Trieste

Italy, Basilicata, Potenza, Monte Volturino, lleg. D. Puntillo 1750 m on acid rocks.
Herbarium: CLU (16524)
07.08.2012

Domenico Puntillo; Owner: Department of Life Sciences, University of Trieste

Italy, Basilicata, Potenza, Monte Volturino, leg. D. Puntillo 1750 m on acid rocks.
Herbarium: CLU (16524)
07.08.2012