ITALIC 8.0

Calicium denigratum (Vain.) Tibell

Bot. Notiser, 129, 2: 132, 1976. Basionym: Calicium curtum var. denigratum Vain. - Medd. Soc. Fauna Flora Fenn., 6: 95, 1881

Synonyms:

Distribution: N - TAA (Ravera & al. 2023).

Description: Thallus crustose, endosubstratic, thin and poorly evident. Apothecia long-stalked, pin-like, slender, epruinose, shining black. Stalk 0.7-1.3 mm high, 0.06-0.09 µm thick, of sclerotized, dark, irregularly interwoven hyphae, the outer layer of non-sclerotized, prosoplectenchymatous hyphae, covered with a thin, transparent gelatinous sheath, the central part dark brown, of irregularly intertwined, sclerotized, thick-walled, 3-4 µm thick hyphae. Capitulum 0.2-0.3 mm across, slightly bell-shaped, with an exciple of sclerotized, dark brown, 3-5 µm thick cells; mazaedium well developed, black; paraphyses cylindrical, formed singly, dissolving early; hypothecium dark brown, 55-70 µm high, with a flat to slightly convex upper surface, of dark brown, sclerotized, intertwined hyphae. Asci cylindrical, formed singly, dissolving early with uniseriate ascospores. Ascospores 1-septate, dark brown, ellipsoid, 11-14 x 6-8 µm, with an irregularly and coarsely areolate wall. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; ascomata I- in all parts. Chemistry: without lichen substances.

Note: on decorticated stumps and snags in montane-subalpine coniferous forests, with several records from the Eastern Alps outside the Italian territory; known from South Tyrol, but perhaps more widespread in the Alps.

Growth form: Crustose

Substrata: lignum

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

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 41540

Pier Luigi Nimis - CC BY-SA 4.0

TSB 41540