ITALIC 8.0

Candelariella viae-lacteae G. Thor & V. Wirth

Stuttgarter Beitr. Naturk., ser. A, 445: 2, 1990.

Synonyms:

Distribution: N - Emil (Gasparo & Tretiach 1996, Tretiach 1997, Fariselli & al. 2020). C - Marc (Frati & Brunialti 2006, Panepinto & Tretiach 2014), Umb (Ravera & al. 2006b, Ravera & Puntillo 2014), Mol (Paoli & al. 2011). S - Camp (Ravera & al. 2019a), Pugl (Nimis & Tretiach 1999), Bas (Paoli & al. 2006), Cal (Tretiach 1997, Puntillo 1996, Aragón & Martínez 2002, Ravera & Puntillo 2014), Si (Panepinto & Tretiach 2014).

Description: Thallus crustose, episubstratic, consisting of whitish to pale grey, globose to branched-coralloid, c. 0.07-0.2 mm wide, blastidia-like granules. Apothecia lecanorine, round, slightly constricted at base, 0.3-0.8 mm across, with a slightly concave to finally convex, yellow-pruinose disc, and a slightly crenulated margin which is yellow in upper part, grey and often blastidiate in outer part. Epithecium yellowish, inspersed with dark yellow granules, 5-10 µm high; hymenium colourless, 50-70 µm high, I+ dark blue; paraphyses mostly simple, 2-3 µm thick at mid-level, the apical cells 3-4 µm wide; hypothecium colourless. Asci 8-spored, clavate, with an apical dome which is I+ blue only in the internal, lower part, interrupted in the centre by an I+ paler blue strip, Candelaria-type. Ascospores 1-celled (rarely a few 1-septate), hyaline, ellipsoid, straight or slightly curved, 13-18 x 4-6 µm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K-, C-, KC-, P-. Chemistry: thallus without lichen substances; apothecia with calycin, pulvinic acid and pulvinic acid dilactone.

Note: a mild-temperate lichen which is certainly more widespread in Italy, especially on wayside trees in small settlements. The species, which is easily overlooked being often sterile, is included in the Italian red list of epiphytic lichens as “Data Deficient” (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: very rare

Padanian area: extremely rare

Humid submediterranean belt: very rare

Humid mediterranean belt: very 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 - CC BY-SA 4.0

Italy, Calabria, Reggio Calabria, Museo Archeologico di Monasterace Marina ; altitude: 10 m.
Herbarium: CLU 17180
07.09.2014

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

Herbarium: TSB (21194)
2002/05/13
sterile thallus

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

Herbarium: TSB (31498)
2001/11/19

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

Herbarium: TSB (22922)
2008.03.03

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

Herbarium: TSB (22922)
2008.03.03

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

Herbarium: TSB (21119)
2008.03.03

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

Herbarium: TSB (31698)
2008.03.03

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

Herbarium: TSB (31698)
2008.03.03

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

Herbarium: TSB (21194)
2008.03.03

Domenico Puntillo; Owner: Domenico Puntillo

Italy

Domenico Puntillo - CC BY-SA 4.0

Italy, Calabria, Reggio Calabria, Museo Archeologico di Monasterace Marina ; altitude: 10 m.
Herbarium: CLU 17180
07.09.2014