ITALIC 8.0

Verrucaria tuerkii Breuss

Linzer biol. Beitr., 25, 2: 657, 1993

Synonyms:

Distribution:

Description: Thallus crustose, very thinly episubstratic, pale grey-green, without a prothallus. Perithecia black, c. 0.2 mm wide, at first covered by a thalline layer, then with a naked apical part. Involucrellum hemispherical, closely adhering to exciple, extending down to exciple-base level and there slightly diverging; exciple globose, thin, black throughout (but paler below in young perithecia); hamathecium of 20-25 µm long and up to 3 µm thick periphysoids, interascal filaments absent; hymenial gel hemiamyloid. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, 24-29 x 8-10 µm, biseriately arranged in the asci. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on bark Fagus in a humid mixed forest, so far only known from type locality in the Eastern Alps (Austria). For further details see Breuss (1993). To be looked for in the Italian Alps.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

pH of the substrata:

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5

(info)

Solar irradiation:

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5

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Aridity:

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5

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Eutrophication:

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Poleotolerance:

0

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Altitudinal distribution:

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Predictive model

Modified from the original at: https://gzu.jacq.org/GZU000284982

GZU 000284982 -R. Tuerk - 1992-09-27 Location Austria / Niederösterreich Label Österreich, Niederösterreich: Lunz am See, Kothbachgraben ; Alt. 600 m Habitat auf Fagus sylvatica, Stammgrund

O. Breuss - Source: Linzer biol. Beitr., 25, 2: 657, 1993

O. Breuss - Source: Linzer biol. Beitr., 25, 2: 657, 1993