ITALIC 8.0

Eopyrenula septemseptata Coppins

Lichenologist, 24: 358, 1992

Synonyms:

Distribution:

Description: Thallus crustose, immersed in the bark, smooth, continuous, white to pale grey. Perithecia 0.2-0.3 mm across, black to dark brown, at first immersed, then projecting, hemispherical or often somewhat flattened at the top. Involucrellum dark brown, clasping the centrum; exciple black in upper part, colourless at base; hamathecium of numerous, mostly simple, persistent paraphysoids; hymenial gel hemiamyloid. Asci 8-spored, subcylindrical, without apical ring-structure and without a distinct ocular chamber, the wall K/I+ blue, especially in lower part. Ascospores 5-7(-8)-septate, not or only slightly constricted at septa, with rectangular loculi, brown, thin-walled, 21-34(-38) x 9-10 µm, the two apical cells paler than the others, the central cell larger and darker. Pycnidia black, immersed, resembling the perithecia. Macroconidia (5-)7-septate, brown (the terminal cells often paler than the others), more or less cylindrical, with an obtuse distal end and a truncate proximal end, 18-26 x 4-5 µm, with dark septa; microconidia colourless, thread-like, (10-)13-16.5 x 0.5-1 µm. Photobiont trentepohlioid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a rare species found on smooth bark of deciduous trees in open, humid forests; apparently with a mainly western European distribution, but also known from Corsica; to be looked for in Italy.

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)

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

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_E/Texte_E/Eopyrenula_septemseptata.htm

Pietrosella : Isolella, alt. 7 m, Corse - sentier du Myrte, forêt de Mare e Sole, sur tronc de Fraxinus et d’Alnus
17/10/2017

Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_E/Texte_E/Eopyrenula_septemseptata.htm

Pietrosella : Isolella, alt. 7 m, Corse - sentier du Myrte, forêt de Mare e Sole, sur tronc de Fraxinus et d’Alnus
17/10/2017

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_E/Texte_E/Eopyrenula_septemseptata.htm

Pietrosella : Isolella, alt. 7 m, Corse - sentier du Myrte, forêt de Mare e Sole, sur tronc de Fraxinus et d’Alnus
17/10/2017

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_E/Texte_E/Eopyrenula_septemseptata.htm

Pietrosella : Isolella, alt. 7 m, Corse - sentier du Myrte, forêt de Mare e Sole, sur tronc de Fraxinus et d’Alnus
17/10/2017

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_E/Texte_E/Eopyrenula_septemseptata.htm

Pietrosella : Isolella, alt. 7 m, Corse - sentier du Myrte, forêt de Mare e Sole, sur tronc de Fraxinus et d’Alnus
17/10/2017