ITALIC 8.0

Pyrenopsis pleiobola Nyl.

Flora, 56: 17, 1873

Synonyms:

Distribution:

Description: Thallus crustose, episubstratic, shiny brown-black when dry, dark reddish brown when wet, up to 250 µm thick, consisting of scattered, convex areoles. Apothecia immersed, perithecioid, 0.1-0.2 mm across, with a punctiform disc. Proper exciple poorly developed; epithecium grey-brown; hymenium colourless, 70-80 µm high, I+ deep blue; hypothecium colourless. Asci 16-32-spored, cylindrical, functionally unitunicate, without amyloid apical structures, the wall I+ red-brown turning blue-green. Ascospores 1-celled, hyaline, subglobose, 3-5 x 2-3 µm. Pycnidia unknown. Photobiont cyanobacterial, chroococcoid (Gloeocapsa), the cells 5-7 µm wide, surrounded by a red brown gelatinous sheath. Spot tests: all negative. Chemistry: without lichen substances.

Note: on moist siliceous rocks; rare in Europe from the boreal to temperate-montane zones, with a single record from the Western Alps (France). To be looked for in Italy.

Growth form: Crustose

Substrata: rocks

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

Reproductive strategy: mainly sexual

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