Ochrolechia upsaliensis (L.) A. Massal.

Ochrolechia upsaliensis (L.) A. Massal.

Ric. Auton. Lich. Crost.: 31, 1852. Basionym: Lichen upsaliensis L. - Sp. Pl.: 1142, 1753.

Synonyms: Lecanora parella var. upsaliensis (L.) Ach.; Ochrolechia upsaliensis f. continua Verseghy

Distribution: N - Frl, Ven (Caniglia & al. 1999, Nascimbene & Caniglia 2000, 2003c, Tomaselli & al. 2006), TAA (Dupla Graec. Lich. 64: Obermayer 1999, Kukwa 2011, Nascimbene 2008b, Nascimbene & al. 2022), Lomb, Piem (Isocrono & al. 2004, Morisi 2005), Emil (Fariselli & al. 2020). C - Abr (Nimis & Tretiach 1999, Gheza & al. 2021).

Description: Thallus crustose, episubstratic, white to pale grey, sometimes with a yellowish tinge, thin, continuous, areolate or granular-warted. Apothecia frequent, lecanorine, sessile, strongly constricted at base, 1-4 mm across, with a pale yellowish to brownish, slightly concave to flat, white-pruinose disc reacting C- and KC-, and a thick, smooth, often flexuose, white-pruinose thalline margin. Thalline margin well developed, thick, entirely white, basally not expanded or partly expanded (character not constant even in a single apothecium), but never vitreous and opaque. Proper exciple poorly developed: epithecium brownish; hymenium colourless, c. 250 µm high, I+ blue; paraphyses branched and anastomosing, conglutinate; hypothecium colourless to most often yellowish. Asci (4-)8-spored, narrowly clavate, uniformly thick-walled, the outer gel strongly I+ blue. Ascospores 1-celled, hyaline, of variable shapes, from subglobose to oblong-ellipsoid, thick-walled, (19-)40-75(-80) x (17-)25-35(-40) µm. Pycnidia dark, immersed. Conidia bacilliform. Photobiont chlorococcoid. Spot tests: thallus K-, C- or C+ yellowish, KC-, P-. Chemistry: variolaric acid, and variable amounts of substances of the murolic acid complex, sometimes with additional unknown fatty acids.

Note: an arctic-alpine species of calciferous soil and plant debris, with optimum above treeline; most frequent in the Alps, where it reaches the nival belt, but also present in the central Apennines. It may be also found growing on shrubs and then it can be mistaken for O. szatalaensis, but the latter has the thalline margin cortex distinctly expanded at base. vitreous but opaque (see Kukwa 2011).

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: rather rare

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

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

Herbarium samples

P.L. Nimis CC BY-SA 4.0

TSB 42509

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (24472)
2003/03/06
apothecium

Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste

Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007

Einar Timdal - Source: http://www.nhm2.uio.no/botanisk/lav/Photo_Gallery/Ochrolechia/upsaliensis_Dovre%202002%2006%2025%20Timdal_ET_1.jpg

Pier Luigi Nimis CC BY-SA 4.0

TSB 41430

Pier Luigi Nimis CC BY-SA 4.0

TSB 41438

P.L. Nimis CC BY-SA 4.0

TSB 41439

P.L. Nimis CC BY-SA 4.0

TSB 42509

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (17880)
2003/03/06

P.L. Nimis CC BY-SA 4.0

TSB 41438

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_O/Texte_O/Ochrolechia_upsaliensis.htm

France, Mijoux - Ain - (01) - Montrond, 50 m sous le sommet, alt. 1580m sur mousses et débris végétaux sur rochers, lég. Danièle Lacoux
23/8/2016

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_O/Texte_O/Ochrolechia_upsaliensis.htm

France, Mijoux - Ain - (01) - Montrond, 50 m sous le sommet, alt. 1580m sur mousses et débris végétaux sur rochers, lég. Danièle Lacoux
23/8/2016

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_O/Texte_O/Ochrolechia_upsaliensis.htm

France, Mijoux - Ain - (01) - Montrond, 50 m sous le sommet, alt. 1580m sur mousses et débris végétaux sur rochers, lég. Danièle Lacoux
23/8/2016

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_O/Texte_O/Ochrolechia_upsaliensis.htm

France, Mijoux - Ain - (01) - Montrond, 50 m sous le sommet, alt. 1580m sur mousses et débris végétaux sur rochers, lég. Danièle Lacoux
23/8/2016

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_O/Texte_O/Ochrolechia_upsaliensis.htm

France, Mijoux - Ain - (01) - Montrond, 50 m sous le sommet, alt. 1580m sur mousses et débris végétaux sur rochers, lég. Danièle Lacoux
23/8/2016

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_O/Texte_O/Ochrolechia_upsaliensis.htm

France, Mijoux - Ain - (01) - Montrond, 50 m sous le sommet, alt. 1580m sur mousses et débris végétaux sur rochers, lég. Danièle Lacoux
23/8/2016

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