Thelocarpon intermediellum Nyl.

Flora, 48: 261, 1865.
Synonyms: Thelocarpon intermixtulum Nyl.
Distribution: N - TAA (Nascimbene & al. 2007b, 2022).
Description: Thallus crustose, not lichenized, bright yellow-pruinose, mostly reduced to small, 0.15-0.3 mm wide, scattered fruiting warts. Ascocarps frequent, perithecioid, immersed in the warts, with a concave, not exposed disc (the warts opening though a small pore) . Exciple colourless, 30-45 μm thick in upper part, 15-25 μm thick in lower part, without algae. Hymenial gel I+ reddish; paraphyses absent, periphyses richly branched, easily detached, arranged around the ostiole and on the sides. Asci many-spored, flask-shaped, persistent, thin-walled, the wall I+ pale blue, the base I+ brownish red. Ascospores 1-celled, hyaline, oblong-obtuse, slightly constricted in the middle, thin-walled, 3-4(-5) x 1-1.5 μm. Pycnidia rare, immersed in the warts, often yellow-pruinose in upper part, with a colourless wall. Conidia oblong-obtuse, simple to 2-septate. Photobiont absent (rarely some algae are present only at the base of the thalline warts). Spot tests: K-, C-, KC-, P-. Chemistry: yellow pruina with pulvinic acid derivatives.
Note: a rarely-collected but apparently widespread, ephemeral, non-lichenized species found on a wide variety of substrata (more or less calciferous soil, rotting wood, gravel, etc.), mostly in upland areas.
Growth form: Crustose
Substrata: rocks and lignum
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent

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

Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: GZU Herb.Hafellner (24934)
2003/04/28


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann


Felix Schumm - CC BY-SA 4.0
[17494], Germany, Nordrhein Westfalen, Bergisches Land, Solingen, Tal der Wupper, auf Kiefern-Totholz, ca. 150 m, MTB 4808/4. Leg. Dieter Gregor Zimmermann 14.05.2011, det. Zimmermann