ITALIC 7.0

Lecanora norvegica Tønsberg

Sommerfeltia, 14: 165, 1992

Synonyms:

Distribution:

Description: Thallus crustose, thinly episubstratic, pale grey-white, forming a few cm wide patches, continuous in central parts, areolate in peripheral parts, the areoles small, up to 0.2 mm wide, slightly convex to tuberculate, the thallus sometimes delimited by a cottony-arachnoid, whitish prothallus, sorediate; soralia at first discrete, regularly rounded and up to 0.3 mm wide, but soon coalescent into several mm wide patches with a leprose surface, with fine (up to 25 µm wide), pale green to grey-green soredia, sometimes gathered in up to 50 μm wide consoredia. Apothecia unknown. Photobiont chlorococcoid. Spot tests: thallus K+ bright yellow (sometimes turning red-brown), C-, KC-, P+ rust-red. Chemistry: thallus (including soralia) with atranorin and protocetraric acid, sometimes with traces of roccellic acid.

Note: on trunks of conifers in sites with a continental climate. A mainly northern species, also known from the Western Alps (Switzerland); to be looked for in the Italian Alps.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)

pH of the substrata:

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5

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Solar irradiation:

1

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5

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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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

TSB 25281

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

Herbarium: TSB (25281)
2002/12/12

Pier Luigi Nimis - CC BY-SA 4.0

Herbarium: TSB 25281