ITALIC 7.0

Lecania flavescens Lynge

Rep. Norw. Novaya Zemlya Exp., 43: 188, 1928.

Synonyms:

Distribution: S - Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996).

Description: Thallus crustose, thinly episubstratic, ochraceous, grey-brown or dark brown, consisting of 1-2 mm broad, more or less verrucose, convex areoles. Apothecia lecanorine, broadly adnate, 0.2-0.5 mm across, with a red-brown to black, slightly to strongly convex disc, and a thin, grey thalline margin. Thalline exciple corticated, rich in algal cells, overlain by an epinecral layer; epithecium red-brown; hymenium colourless to brownish violet, 45-65 µm high; paraphyses lax, mostly simple, the apical cells distinctly swollen, 5-8.5 µm wide, with a red-brown to brown-black cap; hypothecium colourless. Asci 8-spored, narrowly clavate, with a K/I+ blue tholus and a central non-amyloid area, Bacidia-type. Ascospores 1-septate, often constricted at septum, hyaline, ellipsoid, (9-)11-13(-14) x (4-)6-7.5 µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on the top of calcareous boulders, including calciferous schists; probably more widespread in the mountains of the South.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

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 4.0

TSB 13337

P.L. Nimis CC BY-SA 04

TSB 13337