ITALIC 8.0

Phaeocalicium compressulum (Vain.) A.F.W. Schmidt

Mitt. Staatsinst. allg. Bot. Hamburg, 13: 130, 1970. Basionym: Mycocalicium praecedens var. compressulum Nyl. ex Vain. - Acta Soc. Fauna Fl. Fenn., 57, 1: 85, 1827.

Synonyms:

Distribution: N - Frl (Puntillo & Puntillo 2009), Ven (Nascimbene & Caniglia 1997, Caniglia & al. 1999, Thor & Nascimbene 2007, Nascimbene & Marini 2007, Nascimbene 2008c, Puntillo & Puntillo 2009), TAA (Thor & Nascimbene 2007, Nascimbene & al. 2007b, Puntillo & Puntillo 2009), Lomb (Nascimbene 2006), Piem (vidi!), VA (vidi!), Lig (TSB 33070).

Description: Thallus not evident, not lichenized. Apothecia stalked, black, 0.25-0.4(-0.5) mm high, the stalk 0.03-0.5 mm thick, somewhat paler than capitulum, medium browm in cenrtal part, consisting of periclinally arranged hyphae, surrounded by an up to 6 µm thick gelatinous layer. Capitulum at first obconical, but soon becoming strongly flattened, 0.08-0.15 wide; mazaedium absent. Exciple well-developed, of periclinally arranged, narrowly cylindrical, brown cells; epithecium thin, dark brown; hypothecium obconical, c. 45 µm high, colourless to medium brown, of more or less isodiametrical cells. Asci 8-spored, cylindrical, with a weakly thickened apex, formed singly from hooked ascogenous hyphae, with uniseriately arranged ascospores, persisting until the ascospores are mature. Ascospores 1-celled, brown, broadly to narrowly ellipsoid, 10-12(-15) x (4.3-)5-6 µm, with a minutely verrucose ornamentation. Photobiont absent. Spot tests: K-, C-, KC-, P-. Chemistry: without lichen substances.

Note: saprobic on Alnus alnobetula, certainly widespread throughout the Alps and locally very common, especially in the subalpine belt.

Growth form: Fungus

Substrata: bark

Reproductive strategy: mainly sexual

Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very common

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

P.L. Nimis CC BY-SA 4.0

TSB 38516

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

Herbarium: TSB (7756)
2001/11/28

P.L. Nimis - CC BY-SA 4.0

TSB 42050