Verrucula latericola (Erichsen) Nav.-Ros. & Cl. Roux

in Navarro-Rosinés & al., Bull. Soc. linn. Provence, 58: 161, 2007. Basionym: Verrucaria latericola Erichsen - Ann. Mycol., 41: 198, 1943.
Synonyms:
Distribution: N - VG (Navarro-Rosinés & al. 2007).
Description: Thallus crustose, areolate or subsquamulose-areolate, forming 3-12 mm wide patches on the thalli of Calogaya pusilla. Areoles (0.2-)0.4-1(1.3) mm wide, (0,2-)0.3-0.65 μm thick, polygonal to rounded, flat to convex, brown to almost black, not or only weakly pruinose. Cortex 7-13 μm thick, of 1-2 layers of pale brown cells, generally covered with an epinecral layer; medulla white, with many large crystals, I-. Perithecia black, 0.13-0.19 mm across, 2-8(-16) 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, 9-13 x 4.5-6 μm. Pycnidia infrequent, 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 Calogaya pusilla, perhaps more widespread in Italy.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras Calogaya pusilla

Commonnes-rarity: (info)

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

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

© Jenny Seawright – Source: http://www.dorsetnature.co.uk/pages-lichen/lch-532.html


© Jenny Seawright – Source: http://www.dorsetnature.co.uk/pages-lichen/lch-532.html