ITALIC 8.0

Lecidea gypsicola Llimona

in Vězda, Lich. Sel. Exs.i, 47: 3 (no. 1160), 1973

Synonyms:

Distribution:

Description: Thallus crustose, areolate, the areoles very thick, flat to slightly convex, white, sometimes with a light brownish hue when dry, pale bluish grey when wet, dull. Cortex rather thick; medulla white, I-. Apothecia lecideine, black, slightly constricted at base, (0.7-)1-2 mm across, with a black, usually faintly pruinose, initially flat but soon turning convex disc and a thin, sometimes finally excluded proper margin. Proper exciple blackish brown in outer part, almost colourless within, with many crystals, C+ red; epithecium olive-green to olive-brown; hymenium colourless; paraphyses simple to branched and anastomosing, 1.5-2 µm thick at mid-level, gradually expanded upwards, the apical cells 3-5 µm wide; hypothecium dark brown to almost black. Asci 8-spored, narrowly clavate, thick-walled, with a K/I+ pale blue tholus and a strongly amyloid, thin apical cushion, surrounded by a I+ blue outer layer, Lecidea-type. Ascospores 1-celled, hyaline, ellipsoid to narrowly ellipsoid, (12.5-)15-18 x (4.5-)5-6(-6.5) | µm, c. 2.9 times as long as wide. Photobiont chlorococcoid. Spot tests; thallus K-, C+ red, KC+ red, P-, UV-. Chemistry: gyrophoric acid and variable amounts of lecanoric acid.

Note: a species belonging to the critical L. fuscoatra-complex. It is known from several localities in Spain, where it invariably grows on gypsum, and from the Irano-Turanian region, where it occurs on calciferous rocks. To be looked for in the gypsum outcrops of Southern Italy, especially in Sicily.

Growth form: Crustose

Substrata: rocks

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

Detail from: https://gzu.jacq.org/GZU000291948

GZU000291948 - Collector Llimona,X. Vězda, A.: Lichenes Selecti Exsiccati 1160 Date 1972-09-24 Location Spain / Navarra Label Hispania. Las Bardenas. Caparroso ; Alt. 400 m Habitat Ad gypsum compactum locis septentr. vel occident. spectantibus, 30° – 60° inclinatis. ISOTYPE

Detail from: https://gzu.jacq.org/GZU000340614

GZU000340614 - Lichenes Selecti Exsiccati, Editi ab Instituto Botanico Academiae Scientiarum Cechoslovacae, Pruhonice prope Pragam 47: 3 (1973) Typified by: X. Llimona 1973 Collector Llimona,X. H. Hertel: Lecideaceae exsiccatae 45 Date 1972-09-24 Label [Navarra.] Prov. Pamplona: Las Bárdenas. Nahe Caparosso ; Alt. 400 m Habitat Auf festem Gipsboden. Expos. 30-60° NW. Sehr häufig im Aspicilio-Lecideetum gypsicolum.