ITALIC 8.0

Microcalicium disseminatum (Ach.) Vain.

Acta Soc. Fauna Fl. Fenn., 57, 1: 77, 1927. Basionym: Cyphelium disseminatum Ach. - K. Vetensk.-Akad. Nya Handl.: 227, 1817.

Synonyms: Calicium atomarium Fr.; Calicium disseminatum (Ach.) Fr.; Calicium microcephalum var. patelliforme Schaer.; Calicium subpedicellatum Schaer.; Calicium viridulum (Ach.) Fr.; Cyphelium atomarium Ach.; Cyphelium viridulum Ach.; Microcalicium subpedicellatum (Schaer.) Tibell; Strongylopsis commixta Vain.; Strongylopsis discreta Nádv.; Strongylopsis leucopus Vain.; Strongylopsis stichococci Vain.

Distribution: N - Frl (Puntillo & Puntillo 2009, Brackel 2016), Ven (Nascimbene 2008c, Puntillo & Puntillo 2009, Brackel 2016), TAA (Nascimbene 2006c, 2008b, 2013, 2014, Nascimbene & al. 2007b, Puntillo & Puntillo 2009, Nascimbene & al. 2009, 2010, 2014, Nascimbene & Marini 2015, Brackel 2016, Trindade & al. 2021), Lomb (Puntillo & Puntillo 2009, Brackel 2016).

Description: Thallus not evident, not lichenized. Apothecia short-stalked to subsessile, 0.1-0.2 mm high, the stalk black, of irregularly interwoven hyphae. Capitulum broadly cylindrical to lenticular, 0.1-0.35 mm across. Exciple well-developed, dark aeruginose green in section, K+ reddish brown; mazaedium well-developed, markedly protruding and often column-like, 2-3 times longer than the width of the apothecium, green-black, with sclerotized, persisting paraphyses. Asci 8-spored, broadly ellipsoid, formed in chains from ascogenous hyphae lacking croziers, with a single functional wall layer, deliquescing at maturity. Ascospores 1-3(-7)-septate, narrowly ellipsoid to subcylindrical, (9-)11-13(-15) x 3-4.2 µm, with a distinct ornamentation of spirally arranged ridges. Pycnidia frequent, dark in upper part, pale in lower part, the wall blue-green, of thick-walled cells. Conidia hyaline, broadly ellipsoid to subglobose, 2-3 x 1.5-2 µm, formed from phialides. Photobiont absent. Spot tests: exciple, ascospores and pycnidial wall K+ brown, N+ aeruginose green. Chemistry: without lichen substances, except a green pigment.

Note: on lignum and bark of both deciduous a coniferous trees, parasitic on calicioid lichens, especially Chaenotheca-species, with the conidiomata forming much earlier than the ascomata, or saprophytic on bark, lignum and algal colonies; probably more widespread in the Alps.

Growth form: Lichenicolous fungus

Substrata: bark

Reproductive strategy: mainly sexual

paras Caliciales

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: 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

Domenico Puntillo CC BY-SA 4.0

Veneto, BL, Valle Del Cadore
CLU 4101

Domenico Puntillo - CC BY-SA 4.0

Veneto, Valle del Cadore, 11/09/1987.
Herbarium: CLU 4101

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

Herbarium: TSB (11904)
2001/12/05

Domenico Puntillo - CC BY-SA 4.0

Veneto, Valle del Cadore, 11/09/1987.
Herbarium: CLU 4101