ITALIC 8.0

Anisomeridium ranunculosporum (Coppins & P. James) Coppins

Checklist of Lichens of Great Britain and Ireland (UK): 86, 2002. Basionym: Arthopyrenia ranunculospora Coppins & P. James - in Coppins, Lichenologist, 20: 318, 1988

Synonyms:

Distribution:

Description: Thallus crustose, endosubstratic, ecorticate, white to very pale brown, often with a pinkish hue when fresh. Perithecia black, 0.15-0.35 mm across, 0.2-0.3 mm tall, circular or ellipsoid, often appearing matt or pruinose due to a thin covering of bark cells, scattered or clustered in small groups. Involucrellum brown, K+ greenish; exciple brown and 30-50 μm thick in upper part; paler and thinner in lower part, of cellular hyphae, usually without bark cells; pseudoparaphyses 0.5-1.5 µm thick, persistent, much branched and anastomosing, the cells 4-10 µm long; periphyses absent. Asci 8-spored, obpyriform, K/I-, fissitunicate, the apical dome with an indistinct ocular chamber, 35-42 x 12-17 µm. Ascospores, 1-septate, constricted at septum, hyaline, tadpole-shaped, with a short, uniguttulate upper cell and an elongate, biguttulate lower cell with a median constriction, (12-)14-16 x 4.5-6 µm, surrounded by a narrow gelatinous sheath at least when young. Pycnidia frequent, black, of two types: (a) c. 0.1 mm across, with oblong-ellipsoid, 0(-1)-septate macroconidia measuring 7.5-10(-12) x 3.5-4.5 µm; (b) c. 0.05 mm across, with bacilliform microconidia measuring 3.5-4 x 0.5-1 µm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on smooth bark in old-growth broad-leaved forests; perhaps overlooked but certainly rare in the Alps (Styria), more common in Western Europe. To be looked for, especially in Tyrrhenian Italy.

Growth form: Crustose

Substrata: bark

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual, or asexual by conidia and thalloconidia

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

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

Image uploaded by Paul Cannon - CC BY-NC Source: https://fungi.myspecies.info/sites/fungi.myspecies.info/files/A20002.jpg

UK

Image uploaded by Paul Cannon - CC BY-NC Source: https://fungi.myspecies.info/sites/fungi.myspecies.info/files/A20002.jpg

UK