ITALIC 8.0

Involucropyrenium llimonae (Etayo, Nav.-Ros. & Breuss) Breuss

Beitr. Naturk. Oberösterreichs, 13: 213, 2004. Basionym: Catapyrenium llimonae Etayo, Nav.-Ros. & Breuss - in Navarro-Rosinés & al., Candollea, 51, 1: 140, 1996

Synonyms:

Distribution:

Description: Thallus small-squamulose brown, matt, the squamules dispersed, (0.1-)0.3-0.5(-0.7) mm wide, (0.5-)0.7-1.5 mm thick, of irregular shape to digitate-coralloid. Upper cortex 10-20 µm thick, paraplectenchymatous, with a thin epinecral layer; algal layer occupying most of the thallus; medulla and lower cortex absent; rhizohyphae colourless, 3-5 µm thick. Perithecia black, originating amongst the squamules, globose to subconical, 0.2-0.4 mm across. Exciple colourless to pale brown, 15-20 µm thick; involucrellum dark brown, completely surrounding the perithecium, 30-60 µm thick; hamathecium of periphyses, interascal filaments absent; hymenial gel hemiamyloid. Asci 8-spored, clavate, with biseriately arranged spores, the wall I-. Ascospores 1-celled, hyaline, broadly ellipsoid, (14-)16-21(-22) x (7-)9-11 µm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: this characteristic species was described from Northern Spain (Navarra), growing on very eroded and weathered, gypsiferous and clayey soils, at 200-300 m; it should be looked for also in Italy.

Growth form: Squamulose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

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

Source: Prieto M., Aragón G., Martínez I. 2010b. The genus Catapyrenium s.lat. (Verrucariaceae) in the Iberian Peninsula and the Balearic Islands. Lichenologist, 42, 6: 637-684.