ITALIC 8.0

Thelocarpon superellum Nyl.

Flora, 48: 261, 1865

Synonyms:

Distribution:

Description: Thallus crustose, not lichenized, consisting of scattered, globose to conical, bright yellow-pruinose, 0.2-0.3(-0.4) mm wide and up to 0.35 mm tall fruiting warts. Ascocarps frequent, perithecioid, immersed in the warts, with a concave, not exposed disc, opening through a small apical pore. Exciple 35-60 μm thick, colourless, without an algal layer; hymenial gel I-, K/I-; paraphyses slender, simple, c. 1 μm thick, not apically thickened, as long as the asci. Asci many-spored, globose to flask-shaped, tapering to apex, persistent, the wall uniformly thin, I+ dark blue to reddish, K/I+ blue. Ascospores 1-celled, hyaline oblong-obtuse, thin-walled, (6-)8-13 x (2.5-)3.5-5(-6) μm, often biguttulate-pseudoseptate and apparently 2-celled. Photobiont absent. Spot tests: K-, C-, KC-, P-. Chemistry: yellow pruina with pulvinic acid derivatives.

Note: a pioneer, ephemeral, non-lichenized fungus found on soil, rotting wood or stones; widespread in the Holarctic region from the boreal to the temperate zone, with a few scattered records from the Alps outside Italian territory, but perhaps largely overlooked. To be looked for in Italy.

Growth form: Non-lichenised and non-lichenicolous (including semilichens)

Substrata: lignum, rocks, soil, terricolous mosses, and plant debris

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

Source: Salisbury G. 1966. A monograph of the lichen genus Thelocarpon. Lichenologist, 3: 175-196.