Arthonia trifurcata (Müll. Arg.) Cl. Roux
Cat. Lich. France: 1314, 2014. Basionym: Opegrapha trifurcata Hepp ex Müll. Arg. - Mém. Soc. Phys. Hist. nat. Genève 16, 2: 407, 1862.
Synonyms: Opegrapha calcarea auct. p.p.; Opegrapha decandollei (Stizenb.) Arnold; Opegrapha koerberiana Müll. Arg.; Opegrapha saxicola var. decandollei Stizenb.
Description: Thallus endosubstratic or thinly episubstratic, continuous to cracked, usually not well-delimited, whitish to greenish white. Apothecia lirelliform, black, epruinose, straight or curved, simple or branched, 0.2-1.5 x 0.1-0.3 mm, isolated or aggregated into irregular clusters, protruding from thallus, with a slit-like disc and a black margin. Proper exciple black, carbonized, closed below the hymenium, K-, the part below the hymenium thin, at most as tall as the hymenium and subhymenium together; epithecium brownish, K-; hymenium colourless, 50-100 µm high, I+ reddish throughout, K/I+ blue; paraphysoids much branched and anastomosing, not capitate; hypothecium black. Asci 8-spored, broadly clavate to subglobose, semifissitunicate, Arthonia-type. Ascospores 3-septate with rounded ends, hyaline, (10-)13-20(-24) x 4-6(-7) μm, usually slightly restricted in the center into two unequally wide parts, the perispore very thin or absent. Pycnidia black, more or less immersed. Conidia straight, 4-10 x 0.5-1.5 µm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: rare
Humid submediterranean belt: rare
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A2/Arthonia_trifurcata.htm
France, Session AFL Bourgogne - Combe Lavaux - Côte-d'Or
10/7/2015
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A2/Arthonia_trifurcata.htm
France, Session AFL Bourgogne - Combe Lavaux - Côte-d'Or
10/7/2015
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A2/Arthonia_trifurcata.htm
France, Session AFL Bourgogne - Combe Lavaux - Côte-d'Or
10/7/2015
Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13485)
17/02/2017
Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13485)
17/02/2017
Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13485)
17/02/2017
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Felix Schumm - CC BY-SA 4.0
[VZR173], Italia, insula Elba: Petresi Mortaio, in valle Uviale de
Petresi, 100 m. Ad lapides calcareous muri. Leg. F. Ceni & A. Vezda.
Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 173.
Felix Schumm - CC BY-SA 4.0
[VZR173], Italia, insula Elba: Petresi Mortaio, in valle Uviale de
Petresi, 100 m. Ad lapides calcareous muri. Leg. F. Ceni & A. Vezda.
Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 173.
Growth form: Crustose
Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: rare
Humid submediterranean belt: rare
Padanian area: absent
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A2/Arthonia_trifurcata.htm
France, Session AFL Bourgogne - Combe Lavaux - Côte-d'Or
10/7/2015
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A2/Arthonia_trifurcata.htm
France, Session AFL Bourgogne - Combe Lavaux - Côte-d'Or
10/7/2015
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A2/Arthonia_trifurcata.htm
France, Session AFL Bourgogne - Combe Lavaux - Côte-d'Or
10/7/2015
Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13485)
17/02/2017
Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13485)
17/02/2017
Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13485)
17/02/2017
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=637&lang=en
France, Aber Four à chaux
Felix Schumm - CC BY-SA 4.0
[VZR173], Italia, insula Elba: Petresi Mortaio, in valle Uviale de Petresi, 100 m. Ad lapides calcareous muri. Leg. F. Ceni & A. Vezda. Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 173.
