Verrucula inconnexaria Nav.-Ros. & Cl. Roux

in Navarro-Rosinés & al., Bull. Soc. linn. Provence, 58: 160, 2007.
Synonyms:
Distribution: N - VG (Navarro-Rosinés & al. 2007).
Description: Thallus crustose, areolate or subsquamulose-areolate, forming 4-50 mm wide patches on the thalli of Athallia inconnexa. Areoles (0.3-)0.6-1.6(-3.4) mm wide, 0.2-0.4(-0.6) mm thick, brown to grey brown, often darker at margins, covered in a thick, white pruina, the surface minutely cracked. Cortex 10-15 μm thick, of 1-3 layers of pale brown cells, covered by a c. 15 μm thick epinecral layer; medulla white, with many large crystals, I-. Perithecia black, 0.15-0.3 mm across, 3-10(-30) per areole, globose, immersed. 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, ellipsoid, (9-)10.5-14,5(-16) x (5.5-)6-8(-9) μm. Pycnidia black, immersed, Dermatocarpon-type, the wall colourless except at the brown apex. Conidia simple, bacilliform, 4.5-6 x 1.1.5 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a lichenicolous lichen growing on the thalli of Athallia inconnexa; recently-described and certainly more widespread in Italy.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras Caloplaca inconnexa

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: very rare
Montane belt: very rare
Submediterranean belt: rather rare
Padanian area: absent
Humid submediterranean belt: rather rare
Humid mediterranean belt: rare
Dry mediterranean belt: rare

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


P.L. Nimis CC BY-SA 04



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, San Lorenzo