Schismatomma pericleum (Ach.) Branth & Rostr.
Bot. Tidskr., 3: 244, 1869. Basionym: Lichen pericleus Ach. - Lichenogr. Suec. Prodr.: 78, 1799.
Synonyms: Lecanactis periclea (Ach.) M. Choisy; Lecanora periclea (Ach.) Ach.; Platygrapha dolosa (Duby) Anzi; Platygrapha periclea (Ach.) Nyl.; Pyrenotea incrustans (Ach.) Fr.; Schismatomma dolosum (Duby) Flot. & Körb.; Schismatomma pericleum var. farinosum (Ach.) Lettau
Distribution: N - Frl (CLU 4396), Ven (Nascimbene 2003b, 2008c, 2011, Nascimbene & al. 2013b), TAA (Tehler 1993, Nascimbene 2006b, 2006c, 2008b, 2014, Stofer 2006, Nascimbene & al. 2007b, 2009, 2010, 2014, 2022, Nascimbene & Marini 2015, Trindade & al. 2021), Lomb, Piem (Isocrono & al. 2004). C - Marc (Nimis & Tretiach 1999), Umb (Ravera 2000, Ravera & al. 2006), Abr (Nimis & Tretiach 1999, Corona & al. 2016), Mol (Nimis & Tretiach 1999, Caporale & al. 2008). S - Camp (Aprile & al. 2003b, Garofalo & al. 2010), Cal (Puntillo 1996).
Description: Thallus crustose, endosubstratic or thinly episubstratic (0.1-0.15 mm thick), whitish to pale grey with a pinkish or orange hue, continuous to rimose-areolate, with a patchily farinose-sorediate surface, without crystals of calcium-oxalates. Apothecia 0.2-0.5 mm across, rounded to short-ellipsoid, at first immersed in the thallus and with a flat, black, epruinose or faintly white-pruinose disc, later more or less protruding but rarely constricted at base, with a slightly convex, epruinose disc surrounded by a thin, whitish, finally disappearing thalline rim. Proper exciple poorly developed, of interwoven hyphae; epithecium reddish brown to dark brown, 15-20 µm high, K+ reddish; hymenium colourless, (60-)70-70(-85) µm high, I+ more or less blue, K/I+ blue; paraphysoids branched in upper part, not coherent and not anastomosing, c. 1 µm thick, the apical cells up to 4 µm wide; hypothecium dark brown to carbonaceous, K+ olivaceous green to dark greenish black. Asci 8-spored, fissitunicate, clavate, with two functional wall layers, thickened at the apex, with an internal K/I+ blue ring. Ascospores 3-septate, hyaline, acicular-fusiform, strongly to slightly curved, (25-)30-42(-56) x 2.5-4.5 µm. Pycnidia black, immersed, the conidiogenous cells elongate-ampulliform, lining the pycnidial cavity. Conidia curved, simple, hyaline, 4-6 x 1-2 µm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus with roccellic acid.Note: a temperate, mainly western species with optimum in humid beech forests, mostly on conifers (Abies, Picea), much more rarely on oaks. It is included in the Italian red list of epiphytic lichens as “Near-threatened” (Nascimbene & al. 2013c).
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
Index Fungorum
GBIF
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Felix Schumm – CC BY-SA 4.0
[15631], Germany, Bayern, Chiemgauer Alpen, Hochfelln, 970 m.
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Schismatomma_pericleum.htm
France, 13/9/2019 - Divonne-les-Bains, La petite Grand, alt. 1400 m - Ain
