Lecidella patavina (A. Massal.) Knoph & Leuckert

in Knoph, Bibl. Lichenol., 36: 116, 1990. Basionym: Lecidea patavina A. Massal. - Ric. Auton. Lich. Crost.: 69, 1852.
Synonyms: Buellia sordida (A. Massal.) Jatta; Catillaria sordida A. Massal.; Lecidea acrocyanea (Th. Fr.) H. Magn.; Lecidea alaiensis Vain.; Lecidea araratica Müll. Arg.; Lecidea endolithea Lynge; Lecidea enteroleuca var. cacuminum J. Steiner; Lecidea epipolioides (J. Steiner) Szatala; Lecidea inamoena Müll. Arg.; Lecidea piemontensis B. de Lesd.; Lecidea portensis Nádv.; Lecidea rolleana H. Magn.; Lecidea rolleana var. portensis (Nádv.) Hertel; Lecidea spitsbergensis Lynge; Lecidea vulgata f. patavina (A. Massal.) Zahlbr.; Lecidella alaiensis (Vain.) Hertel; Lecidella alaiensis var. spitsbergensis (Lynge) Clauzade & Cl. Roux; Lecidella endolithea (Lynge) Hertel & Leuckert; Lecidella inamoena (Müll. Arg.) Hertel; Lecidella spitsbergensis (Lynge) Hertel & Leuckert
Distribution: N - Frl, Ven (Nimis 1994, Caniglia & al. 1999, Lazzarin 2000b, Nascimbene & Caniglia 2003c, Thor & Nascimbene 2007), TAA (Nascimbene 2003, Hertel & Schuhwerk 2010, Spitale & Nascimbene 2012), Lomb, Piem, VA (Piervittori & Isocrono 1999), Emil (Tretiach & al. 2008, Fariselli & al. 2020), Lig (Giordani & al. 2016). C - Tosc, Marc (Nimis & Tretiach 1999), Umb (Nimis & Tretiach 1999, Ravera & al. 2006), Laz (Nimis & Tretiach 2004), Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach, 1999, 2004, Caporale & al. 2008), Sar. S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Grillo & al. 2007).
Description: Thallus crustose, very variable, from fully endosubstratic to episubstratic, continuous or rimose, rarely areolate and up to 2 mm thick, white to beige, without a distinct prothallus. Cortex up to 100 µm thick in the areolate forms, overlain by an epinecral layer, usually with crystals; medulla white, I-. Apothecia lecideine, black, sessile and strongly constricted at base, 1-3 mm across, with a flat to finally convex, epruinose disc, and a thin, glossy, raised, often undulate proper margin. Proper exciple bright green, bluish green or brownish in outer part, colourless and with dense crystals and/or oil droplets within; epithecium bright green-black to bluish green, 15-25 µm high; hymenium colourless, 65-110 µm high, densely inspersed with oil droplets, I+ blue; paraphyses easily made free in K, mostly simple, rarely sparingly branched and anastomosing, 1.5-2.5 µm thick at mid-level, the apical cells 3-5 µm wide; hypothecium colourless to (rarely) very pale yellowish brown, usually strongly filled with crystals, without oil droplets. Asci 8-spored, clavate, with an intensely I+ blue tholus penetrated by a weakly amyloid, broadly cylindrical axial mass, and a poorly developed ocular chamber, Lecidella-type. Ascospores 1-celled hyaline, broadly ellipsoid to ovoid, 10-17(-19) x 6-10 µm, rather thick-walled. Pycnidia black, globose. Conidia thread-like, curved, 11-27 x c. 1 µm. Photobiont chlorococcoid. Spot tests: thallus K- or rarely K+ yellow, C-, KC-, P- or rarely P+ pale yellow. Chemistry: thallus with variable amounts of atranorin, zeorin, and rarely lichexanthone.
Note: a circumpolar, cool-temperate to arctic-alpine, nitrophilous lichen, one of the most common calcicolous lichens of upland areas throughout the country, reaching the nival belt in the Alps, related with L. stigmatea. For the chemistry see Knoph & Leuckert (1997, 2000).
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model
Herbarium samples


P.L. Nimis CC BY-SA 4.0
TSB 3834



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



P.L. Nimis CC BY-SA 4.0
TSB 3834



P.L. Nimis CC BY-SA 4.0
TSB 7786



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



P.L. Nimis CC BY-SA 4.0
TSB 34521