Ochrolechia balcanica Verseghy

Beih. Nova Hedwigia, 1: 85, 1962.
Distribution: N - Lig (Brunialti & al. 2001). C - Tosc (Tretiach & Nimis 1994, Loppi & Putortì 1995b, Tretiach & Ganis 1999, Kukwa 2011, Benesperi 2011), Umb (Ravera 1998, Ravera & al. 2006), Laz (Ravera 2002b), Abr (Di Santo & Ravera 2012, Corona & al. 2016), Mol (Garofalo & al. 1999, Caporale & al. 2008), Sar (Zedda 1995, 2002, 2002b, Loi & al. 2000, Kukwa 2011, Rizzi & al. 2011, Cossu 2013). S - Camp (Garofalo & al. 1999, 2010, Aprile & al. 2002, 2003, 2003b, 2011, Nimis & Tretiach 2004, Catalano & al. 2010, 2016, Brunialti & al. 2013, Ravera & Brunialti 2013), Pugl (Nimis & Tretiach 1999, Durini & Medagli 2004), Bas (Nimis & Tretiach 1999, Kukwa 2011), Cal (Puntillo 1996, Incerti & Nimis 2006), Si (Grillo & Cristaudo 1995, Grillo 1996, Brackel 2008b, Campisi & al. 2020).
Description: Thallus crustose, episubstratic, white to cream-coloured, smooth to verrucose and uneven, sometimes delimited by a white prothallus. Apothecia lecanorine, 2-6 mm across, with a pale brown to pale reddish brown, epruinose, slightly concave to flat disc, and a thick, prominent, smooth thalline margin. Cortex of the thalline margin well developed, with a well differentiated medulla; epithecium pale brown, granular, the granules dissolving in K, C+ red; hymenium colourless; paraphyses thin, densely branched and anastomosed; hypothecium colourless to yellowish, underlain by a continuous algal layer. Asci (6-)8-spored with thick, amyloid walls, Pertusaria-type. Ascospores 1-celled, hyaline, broadly ellipsoid, 45-63 x 20-32 µm. Pycnidia pale pinkish brown. Conidia cylindrical, straight. Photobiont chlorococcoid. Spot tests: thallus K+ pale yellow, C+ red, KC+ red, P-; disc of apothecia C+ carmine red. Chemistry: gyrophoric and lecanoric acids.
Note: common and abundant in humid beech forests of the Apennines, rarer in Quercus forests of Tyrrhenian Italy. Apparently absent from the Alps, this conspicuous lichen probably belongs, together with species such as Parmelia submontana and Physconia venusta, to an ancient, pre-glacial, Mediterranean-montane element which is well worthy of further study.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: common
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: rare
Humid mediterranean belt: extremely rare
Dry mediterranean belt: absent

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model
Herbarium samples

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13811)