Verrucaria funckii (Spreng.) Zahlbr.

Cat. Lich. Univ., 1: 41, 1921. Basionym: Pyrenula funckii Spreng. - Crypt. Gew., 32: 5, 1826.
Synonyms: Verrucaria denudata f. dissulta Servít; Verrucaria elaeomelaena f. silicicola Zschacke; Verrucaria mougeotii (Zschacke) Servít; Verrucaria nuda Zschacke; Verrucaria silicea Servít
Description: Thallus crustose, episubstratic, smooth, continuous or with a few cracks, subgelatinous when wet, pale grey-green to brown when dry (often turning orange-brown in the herbarium), greenish and often transparent when wet, 50-250 μm thick, delimited by a thin whitish prothallus from the rock, or by dark lines from conspecific thalli. Cortex poorly developed, 10-15 μm thick, with a yellowish brown pigment in sun-forms, colourless in shade-forms; algal layer 70-120 μm thick; medulla paraplectenchymatous, the cells arranged in columns, with a well-visible and usually continuous black basal layer formed by neighbouring involucrella. Perithecia almost completely covered by a thalline layer, not projecting or forming shallowly conical, 0.3-0.6 mm wide projections. Involucrellum 15-20 μm thick, red-brown and K+ grey, distinctly conical, reaching to base-level and often diverging from exciple in lower part, the space between involucrellum and exciple occupied by pigmented cells; exciple 0.18-0.4 mm across, the wall colourless except in uppermost part near the ostiole; hamathecium of 17-25 μm long periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type, 60-75 x 20-27 μm. Ascospores 1-celled, hyaline, ellipsoid to narrowly ellipsoid, (17-)22-26(-28.5) x (7-)8-11(-13) μm, (1.8-)2-2.6(-3.1) times as long as wide, at least some of them surrounded by a 0.5(-2) μm thick, gelatinous perispore. Photobiont chlorococcoid, the cells arranged in vertical columns. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Periodically submerged (e.g. in creeks)

Commonnes-rarity: (info)

Alpine belt: very rare
Subalpine belt: rare
Montane belt: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent

pH of the substrata:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Rarity

absent
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Source:Verrucaria funckii (Sprengel) Zahlbr - 1876 - The Trustees of the Natural History Museum, London, United Kingdom - CC BY.
Verrucaria funckii (Sprengel) Zahlbr - 1876 - The Trustees of the Natural History Museum, London, United Kingdom - CC BY. Charles du Bois Larbalestier (collector) (field number: s.n.)


Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige


Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige


Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Sardinia
2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_funckii.htm
France, 4/10/2011 - Asco - sous le lac d’Argent, 2100 m - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_funckii.htm
France, 4/10/2011 - Asco - sous le lac d’Argent, 2100 m - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_funckii.htm
France, 4/10/2011 - Asco - sous le lac d’Argent, 2100 m - Corse


Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in op. Oliero 1855
Lithoicea Funkii Massal. ? (vix differt.)


Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige


Source: Servít M. 1954a. Lichenes familiae Verrucariacearum. Prag, 249 pp.
as Verrucaria silicea