ITALIC 8.0

Thelidium tiroliense Zschacke

Hedwigia, 62: 133, 1920.

Synonyms:

Distribution:

Description: Thallus crustose, thinly episubstratic, continuous, in various shades of brown, often patchily interrupted and inapparent. Perithecia black, 0.1-0.2 mm across, subsessile, strongly projecting, with a somehow shiny ostiolar region. Involucrellum reaching down to the base of the perithecium, sometimes even closed; exciple thin, brown-black throughout; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, ellipsoid to clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of a delicate rostrum. Ascospores 1-septate, hyaline, narrowly ellipsoid, 17-19 x 7-8 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances

Note: on calciferous rocks in the montane and subalpine belts; known from a few localities in the Eastern Alps (Austria), to be looked for in the Italian Alps.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

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

Index Fungorum GBIF