ITALIC 8.0

Pyrenula laevigata (Pers.) Arnold

Flora, 68: 158, 1885. Basionym: Verrucaria laevigata Pers. - Ann. Wetter. Gesellsch. Ges. Naturk., 2: 11, 1810.

Synonyms: Pyrenula alba var. laevigata (Pers.) Trevis.; Pyrenula alba var. microcarpa (Hepp) Trevis.; Pyrenula glabrata (Ach.) A. Massal.; Verrucaria glabrata Ach.

Distribution: N - Frl (Pistocchi & al. 2026), Ven, Lomb, Lig. C - Sar (Zedda 2002). S - Camp (Puntillo & al. 2000), Cal.

Description: Thallus crustose, more or less immersed in the bark, continuous, smooth, mostly silvery white to rarely very pale yellow-brown, without pseudocyphellae. Perithecia black, (0.3-)0.4-0.5(-0.7) mm across, slightly flattened in section, forming projections on the thallus, with a black involucrellum which is separable from the exciple and slightly spreading in lower part. Exciple brown throughout; hamathecium of branched and anastomosed periphysoids, later substituted by more or less unbranched paraphyses; ostiole with periphyses; hymenium colourless, not containing anthraquinones, K-. Asci 8-spored, narrowly cylindrical, long-stalked, bitunicate, with tholus, thickened at apex with an internal apical beak, non-amyloid. Ascospores 3(-5)-septate, brown, thick-walled, narrowly ellipsoid to subfusiform, (9-)17-25(-30) x (5-)6-8(-11) μm. Pycnidia black. Conidia thread-like, curved, 10-20 x 0.5-0.8 μm. Photobiont trentepohlioid. Spot tests: thallus K+ yellow, C-, KC-, P-, UV-. Chemistry: thallus with unidentified substances.

Note: a temperate species of smooth bark, most frequent on Carpinus and Fagus in open, humid woodlands.

Growth form: Crustose

Substrata: bark

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: extremely rare

Padanian area: absent

Humid submediterranean belt: extremely 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 DOLICHENS

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

Herbarium: TSB (9242)
2001/11/29

Felix Schumm - CC BY-SA 4.0

[1412], Germany, Baden-Württemberg, Rems-Murr-Kreis, Baach bei Schnait, an Carpinus im Schlierbachtal. Leg. E. Putzler, 16.08.1950, det. O. Klement.

Felix Schumm - CC BY-SA 4.0

[1412], Germany, Baden-Württemberg, Rems-Murr-Kreis, Baach bei Schnait, an Carpinus im Schlierbachtal. Leg. E. Putzler, 16.08.1950, det. O. Klement.

Felix Schumm - CC BY-SA 4.0

[1412], Germany, Baden-Württemberg, Rems-Murr-Kreis, Baach bei Schnait, an Carpinus im Schlierbachtal. Leg. E. Putzler, 16.08.1950, det. O. Klement.

Felix Schumm - CC BY-SA 4.0

[1412], Germany, Baden-Württemberg, Rems-Murr-Kreis, Baach bei Schnait, an Carpinus im Schlierbachtal. Leg. E. Putzler, 16.08.1950, det. O. Klement.

Felix Schumm - CC BY-SA 4.0

[1412], Germany, Baden-Württemberg, Rems-Murr-Kreis, Baach bei Schnait, an Carpinus im Schlierbachtal. Leg. E. Putzler, 16.08.1950, det. O. Klement.

Wolfgang von Brackel - CC BY-4.0

Germany, Bavaria, Freibergsee Oberallgäu

Wolfgang von Brackel - CC BY-4.0

Germany, Bavaria, Freibergsee Oberallgäu

Wolfgang von Brackel - CC BY-4.0

Germany, Bavaria, Freibergsee Oberallgäu

Source: Harris R.C. (1973) The corticolous pyrenolichens of the Great Lakes region. Michigan Bot. 12: 3-68.