ITALIC 8.0

Verrucaria navarrensis Breuss & Etayo

Linzer biol. Beitr., 27, 2: 666, 1995.

Synonyms:

Distribution:

Description: Thallus crustose, thinly episubstratic, pale brown, minutely rimose-areolate. Perithecia black, immersed in the thallus, emerging only with the periostiolar area, globose, up to 0.25 mm across. Involucrellum absent; exciple black throughout; hamathecium of periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type. Ascospores 1-celled, hyaline, ellipsoid, 12-15 x 6-7 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a terricolous species of more or less calciferous, clayey soil, known only from a few localities in Spain (Navarra). To be looked for in Italy.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

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