ITALIC 8.0

Lecanora mugosphagneti Poelt & Vězda

Bibl. Lichenol., 16: 364, 1981

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Distribution:

Description: Thallus crustose to subleprose, episubstratic, rather thick, greenish white to pale grey, soon almost completely covered with early coalescent soralia bearing fine, whitish soredia, usually forming large patches, often delimited by a cottony-arachnoid, whitish prothallus. Apothecia very rare, lecanorine, round to usually irregular in outline (often deformed by mutual compression), 0.5-1.8(-2.5) mm across, sessile and constricted at base, with a flat to convex, pink-brown to flesh-coloured, but strongly white-pruinose disc and a smooth, often sinuous thalline margin. Thalline exciple ecorticate, with numerous small crystals soluble in K; epithecium pale brown, with pigment and crystals soluble in K; hymenium colourless; paraphyses branched and anastomosing, not or only slightly thickened at apex; hypothecium colourless. Asci 8-spored, clavate, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 9-12(-14) x 6-8 µm . Photobiont chlorococcoid. Spot tests: thallus K+ yellow, C-, KC-, P+ yellow. Chemistry: thallus with atranorin, caperatic and roccellic acids; apothecia with protocetraric acid.

Note: on bark of Pinus mugo in bogs; a very rare species, known from very few sites in the Alps, outside Italian territory; to be looked for in the Italian Alps. For further details see Malíček & al. (2017).

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

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

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Altitudinal distribution:

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Predictive model

Index Fungorum GBIF