ITALIC 7.0

Psorotichia lutophila Arnold

Ber. bayer. bot. Ges., 1, Anh.: 129, 1891

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Distribution:

Description: Thallus crustose, dark grey-brown, dark blue-green or almost black, thin, granulose, paraplectenchymatous throughout. Apothecia at first half immersed, then sessile, 0.2-0.5(-0.9) mm across, with an initially punctiform and urceolate, later expanded and flat, reddish brown disc, a usually evident parathecial ring, and a thin, smooth, finally often almost excluded thalline margin. Epithecium orange-brown; hymenium colourless, I+ blue; hypothecium colourless. Asci 8-spored, cylindrical-clavate, with a rather thick, not amyloid wall, without apical amyloid thickenings. Ascospores 1-celled (rarely 1-septate), hyaline, ellipsoid, (11.5-)13.5-25 x 7.5-12.5 µm. Photobiont cyanobacterial, with entangled chains of globose cells surrounded by a yellowish brown gelatinous sheath. Spot tests: all negative. Chemistry: without lichen substances.

Note: an ephemeral pioneer species colonizing disturbed sandy-loamy soil, described from the surroundings of Munich in Bavaria, and known from several localities in Central Europe. Its generic position requires further study. To be looked for in Italy.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: cyanobacteria, coccaceous (e.g. Gloeocapsa)

Reproductive strategy: mainly sexual

Pioneer species

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