ITALIC 7.0

Tomasellia arthonioides (A. Massal.) A. Massal.

Flora, 39: 284, 1856. Basionym: Arthopyrenia arthonioides A. Massal. - Ric. Auton. Lich. Crost.: 169, 1852.

Synonyms: Melanotheca arthonioides (A. Massal.) Nyl.; Pyrenula arthonioides (A. Massal.) Trevis.

Distribution: N - VG, Frl, Ven (Lazzarin 2000), TAA (Nascimbene & al. 2007b), Lomb, Piem (Isocrono & al. 2004), Emil, Lig. C - Tosc, Marc (Nimis & Tretiach 1999), Umb (Ravera 1998, Ravera & al. 2006), Laz (Nimis & Tretiach 2004), Abr (Caporale & al. 2016), Mol (Nimis & Tretiach 1999, Caporale & al. 2008). S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999, Potenza 2006), Cal (Puntillo 1996, Puntillo & Puntillo 2004), Si (Nimis & al. 1994).

Description: Thallus crustose, not lichenized, endosubstratic, usually poorly evident, causing a slight bleaching of the bark. Ascomata perithecioid, immersed into black, irregularly shaped pseudostromata with an overlying, black wall which is not continuous below the hamathecium. Hamathecium of branched, rarely anastomosing, non-amyloid pseudoparaphyses. Asci 8-spored, obclavate, tapering to apex, fissitunicate, with two functional wall layers, K/I-. Ascospores 1-3-septate with eusepta, hyaline or finally pale brown, constricted at middle septum, ellipsoid to ovoid, 7-9 x 3-4 µm, the wall not ornamented, the cells of unequal size. Pycnidia black, immersed. Conidia bacilliform, simple, colourless. Spot tests: all negative. Chemistry: without lichen substances.

Note: a mild-temperate fungus, most frequent on the smooth bark of Fraxinus ornus in the submediterranean belt.

Growth form: Fungus

Substrata: bark

Reproductive strategy: mainly sexual

Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: rather rare

Padanian area: absent

Humid submediterranean belt: rather common

Humid mediterranean belt: 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

P.L. Nimis CC BY-SA 4.0

TSB 7158

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

Herbarium: TSB (7158)
2001/11/30