ITALIC 7.0

Thelocarpon strasseri Zahlbr.

Verh. K.-K. zool.-bot. Ges. Wien, 52: 261, 1902

Synonyms: Ahlesia strasseri (Zahlbr.) Keissl.

Distribution:

Description: Thallus not apparent (species not lichenized), reduced to small, obconical-cylindrical, greenish yellow-pruinose, c. 0.1 mm wide, 0.2-0.25 mm tall (0.4-0.5 times as wide as tall) fruiting warts. Ascomata frequent, semi-immersed in the warts, at first perithecioid but soon turning apothecioid with an expanded, exposed, usually yellow-pruinose disc and a thin, raised margin. Exciple colourless, without algae; periphyses absent, paraphyses slender, simple or dichotomously branched, apically slightly thickened; hymenial gel I-. Asci 50-100-spored, cylindrical-clavate, rather thick-walled, the wall I+ blue, the apex slightly thickened and with a darker I+ blue ring-structure within. Ascospores 1-celled, hyaline, broadly ellipsoid, thin-walled, 5-7 x 1.7-3 μm. Photobiont absent. Spot tests: K-, C-, KC-, P-. Chemistry: yellow pruina with pulvinic acid derivatives.

Note: an ephemeral, not lichenized, pioneer species developing on decaying wood, with several stations in the Eastern Alps (Austria); the distinction from Th. lichenicola is not clear, and this taxon is not always accepted as a separate species, a problem which, however, needs further study. To be looked for in Italy.

Growth form: Fungus

Substrata: lignum

Reproductive strategy: mainly sexual

Pioneer species

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

United States National Herbarium - Smithsonian (US:Lichens) Collector: A. Vezda Number: 2325 Date: 1984-08-20 Locality: Montenegro, Crna Gora (Montenegro), Mts. Durmitor, in pede Mt. Medved Loco "Brojista" dicto, supra lacum Crno jezero. Elevation: 1700 meters (5576ft) Habitat: on rock - CC BY-NC 3.0 - Source: Consortium of Lichen Herbaria (2023) http//:lichenportal.org/portal/index.php. Accessed on December 20.

United States National Herbarium - Smithsonian (US:Lichens) Collector: A. Vezda Number: 2325 Date: 1984-08-20 Locality: Montenegro, Crna Gora (Montenegro), Mts. Durmitor, in pede Mt. Medved Loco "Brojista" dicto, supra lacum Crno jezero. Elevation: 1700 meters (5576ft) Habitat: on rock - CC BY-NC 3.0 - Source: Consortium of Lichen Herbaria (2023) http//:lichenportal.org/portal/index.php. Accessed on December 20.