Verrucula hladuniana (Nav.-Ros. & Cl. Roux) Nav.-Ros. & Cl. Roux

in Navarro-Rosinés & al., Bull. Soc. linn. Provence, 58: 159, 2007. Basionym: Verrucaria hladuniana Nav.-Ros. & Cl. Roux - Bull. Soc. linn. Provence, 39: 129, 1988 (1987)
Synonyms:
Distribution:
Description: Thallus crustose, areolate, forming 3-8 mm wide patches on the thalli of Flavoplaca marina. Areoles small, 0.2-0.6 mm wide, 0.1-0.2 mm thick, irregularly polygonal to rounded, flat to slightly convex, grey to grey brown, finely white-pruinose. Cortex 10-15 μm thick, of 1-2 layers of pale brown cells, often covered by an epinecral layer; medulla white, with many large crystals, I-. Perithecia black, 0.1-0.2 mm across, globose, at first immersed, but finally projecting for 1/3-1/2. Involucrellum absent; exciple paraplectenchymatous, colourless except around the ostiole; hymenium colourless, I+ reddish; hamathecium of periphyses along the ostiolar channel, pseudoparaphyses in upper part of the perithecium, and paraphyses disappearing early. Asci 8-spored, clavate, bitunicate, with a thin tholus reacting I-, Verrucaria-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, (9-5)12-18(-19-5) x (4-)6-7(-7.5) μm, 2-3(-4) times as long as wide. Pycnidia black, immersed. Conidia bacilliform, 4-6 x c. 1 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a parasite on Flavoplaca marina, described from Spain and also known from Corsica. To be looked for in Italy, especially in Sardinia.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras Flavoplaca marina
Taxon bound to maritime-coastal situations

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

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Verrucula_hladuniana.htm
France, 12/10/2015 - Pointe de Ventilègne, alt. 5 m - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Verrucula_hladuniana.htm
France, 12/10/2015 - Pointe de Ventilègne, alt. 5 m - Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=390&lang=en
France, Lostmarc'h
on Caloplaca marina