ITALIC 8.0

Lobothallia recedens (Taylor) A. Nordin, Savić & Tibell

Mycologia, 102: 1346, 2010. Basionym: Lecidea recedens Taylor in Mackay - Fl. Hibern., 2: 117, 1836.

Synonyms: Aspicilia bohemica Körb.; Aspicilia polygonia var. pantherina A. Massal.?; Aspicilia recedens (Taylor) Arnold; Lecanora bohemica (Körb.) H. Magn.; Lecanora griseola Th. Fr.; Lecanora recedens (Taylor) Nyl.; Lecanora subcinerea Nyl.; Lobothallia recedens (Taylor) A. Nordin, Savic & Tibell

Distribution: N - Ven, TAA (Nascimbene 2005), Piem (Isocrono & al. 2003, Giordani & al. 2014), VA (Piervittori & Isocrono 1999, Matteucci & Vanacore Falco 2015).

Description: Thallus crustose, episubstratic, thick, deeply cracked-areolate to verrucose, dark blue-grey to brown, sometimes with a brownish violet hue, often more or less white-pruinose. Areoles 0.5-2.5 mm wide, angular or the marginal ones rounded-wavy, with an uneven surface. Apothecia lecanorine-aspicilioid, 0.3-1 mm across, at first immersed in the areoles, later subsessile, often crowded (3-6 per areole), round to irregular by mutual compression, with a brown-black, matt, flat, often pseudogyrose disc, and a thin, persistent, finally sometimes radially cracked thalline margin. Proper exciple pseudoparenchymatous; epithecium olive-green, N+ emerald green; hymenium colourless, 75-85(-100) μm high; paraphyses sparingly branched, moniliform, the apical cells up to c. 3 μm wide. Asci 8-spored, cylindrical-clavate, the thin outer coat K/I+ blue, the wall and apical dome K/I-. Ascospores 1-celled, hyaline, broadly ellipsoid, (9-)12-14 x 7-9 μm, thin-walled, often poorly developed. Pycnidia flask-skaped, with a dark punctiform ostiole and a colourless wall. Conidia bacilliform, 3-5 x c. 1 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-. Chemistry: without lichen substances.

Note: a lichen ranging from the boreal zone to the Mediterranean mountains, found on periodically wetted but rapidly drying siliceous rocks in upland areas. It is ecologically similar to Umbilicaria pustulata, and is probably more widespread in the Alps.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely rare

Oromediterranean belt: absent

Montane belt: very 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

Herbarium samples

Index Fungorum GBIF

Source: http://fungi.myspecies.info/all-fungi/lobothallia-recedens - CC BY-NC

Source: http://fungi.myspecies.info/all-fungi/lobothallia-recedens - CC BY-NC

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife