ITALIC 8.0

Acarospora clauzadeana (Llimona) Casares & Hafellner

Nova Hedwigia, 55, 3-4: 319, 1992. Basionym: Biatorella clauzadeana Llimona - Las comunidades de liquenes de los yesos de Espana: 7, 1974.

Synonyms:

Distribution:

Description: Thallus crustose, very poorly developed, inapparent or consisting of a few yellow granules near the apothecia, ecorticate, the photobiont cells mostly endolithic or located in the fissures of gypsum rocks. Apothecia urceolate, (0.5-)0.7-2 mm across, sessile and strongly constricted at base, with a yellowish, often slightly pruinose disc and a raised, up to 0.3 mm thick, brighter lemon-yellow margin. Exciple devoid of algae or with a few algae at the base only, with a textura intricata, the outer hyphae encrusted with bacilliform, yellow crystals measuring 2-3 x 0.5-1 µm; epithecium pale yellow, with yellowish crystals, covered in a thin colourless epipsamma; hymenium colourless, not inspersed with oil droplets, 75-90 µm high, hemiamyloid, I+ blue turning reddish; paraphyses richly branched and anastomosing, the apical cells not swollen; hypothecium colourless, small-celled, basally extended in a kind of stipe. Asci >200-spored, clavate, the outer wall K/I+ blue, the tholus K/I-. Ascospores 1-celled, hyaline, ellipsoid, (2-)4-5.5 x 1.5-2.5 µm. Pycnidia rare, yellowish. Conidia subglobose, 2.5-3.2 x c. 2.5 µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV+ orange. Chemistry: rhizocarpic acid.

Note: a rare gypsicolous species, hitherto known only from southeastern Spain. To be looked for in the gypsum outcrops of Sicily.

Growth form: Crustose endolithic

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

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Poleotolerance:

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Altitudinal distribution:

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Predictive model

Source: https://www.europeana.eu/it/item/875/NHMUKXBOTXBM001096126

As Biatorella clauzadeana Llimona - 1973 - The Trustees of the Natural History Museum, London, United Kingdom - CC BY.

United States National Herbarium - Smithsonian (US:Lichens) Type Status: Isotype Collector: X. Llimona Number: Lich. sel. Exsic. 1246 Date: 1973-04-12 Locality: Spain, Almeria, Prope Sorbas, ad Km. 175 viae ad Veram Elevation: 400 meters (1312ft) Habitat: Ad gypsum compactum - CC BY-NC 3.0 - Source: Consortium of Lichen Herbaria (2023) http//:lichenportal.org/portal/index.php. Accessed on December 09.

Source: https://www.europeana.eu/it/item/875/NHMUKXBOTXBM001096126

As Biatorella clauzadeana Llimona - 1973 - The Trustees of the Natural History Museum, London, United Kingdom - CC BY.

Source: https://www.europeana.eu/it/item/875/NHMUKXBOTXBM001096126

As Biatorella clauzadeana Llimona - 1973 - The Trustees of the Natural History Museum, London, United Kingdom - CC BY.