Porina linearis (Leight.) Zahlbr.

Cat. Lich. Univ., 1: 391, 1922. Basionym: Verrucaria linearis Leight. - Brit. Spec. Angiocarp. Lich.: 52, 1851.
Synonyms: Porina chlorotica var. linearis (Leight.) A.L. Sm.; Porina chlorotica var. persicina (Körb.) A.L. Sm.; Porina persicina (Körb.) Zahlbr.; Pseudosagedia linearis (Leight.) Hafellner & Kalb; Sagedia harrimannii A. Massal.; Sagedia persicina Körb.; Spermatodium lineare (Leight.) Trevis.; Trichothelium lineare (Leight.) R.C. Harris; Verrucaria chlorotica subsp. leucotica Nyl.; Verrucaria gibelliana Garov.; Verrucaria immergens Nyl.; Verrucaria ricasolii Garov.
Distribution: N - VG, Frl, Ven (Nascimbene & Marini 2007), TAA, Lomb, Piem (Isocrono & al. 2004), Emil, Lig. C - Tosc (TSB 35266), Marc (Nimis & Tretiach 1999, Tretiach 2014), Umb (Genovesi & Ravera 2001, Ravera & al. 2006), Laz (Bartoli & al. 1998, Nimis & Tretiach 2004), Abr, Sar. S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Nimis & al. 1994, 1996b, Ottonello & Salone 1994, Ottonello & al. 1994, Ottonello 1996, Grillo 1998, Grillo & Caniglia 2004, Caniglia & Grillo 2005, 2006, Grillo & al. 2009).
Description: Thallus crustose, mostly endosubstratic, rarely thinly episubstratic in older parts, continuous or slightly cracked, pink, grey or brownish. Perithecia black, 0.2-0.4 mm across, half-immersed in pits of the rock to almost superficial. Involucrellum of thick-walled, more or less elongated cells, purple-violet to purplish brown (Sagedia-red pigment), K+ dark blue-grey to dark grey-brown; exciple at first colourless in lower part, then soon darkening: paraphyses simple or rarely branched; hymenial gel I-, K/I-. Asci 8-spored, clavate-cylindrical, thin-walled throughout, functionally unitunicate, dehiscent by rupture of the apex, with no extruded inner layers, I-, K/I-. Ascospores 3-septate, hyaline, narrowly ellipsoid, 15.5-23.5 x (3.5-)4-6(-7) μm. Pycnidia black, more or less immersed in pits. Conidia oblong, straight to slightly curved, 3.3-4.5 x c. 1.2 μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus without lichen substances.
Note: a mainly mild-temperate species found on limestone in sheltered situations, mostly near the ground, often with Acrocordia conoidea.
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: rare
Submediterranean belt: rather common
Padanian area: extremely rare
Humid submediterranean belt: common
Humid mediterranean belt: rather common
Dry mediterranean belt: very 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
Herbarium samples
Index Fungorum GBIF


A. Moro CC BY-SA 04



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (21502)
2002/02/23



P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38327)
2008.02.25


Antonio Valero; Owner: Antonio Valero
Spain
2010


Antonio Valero; Owner: Antonio Valero
Spain
2010


Antonio Valero; Owner: Antonio Valero
Spain
2010


Antonio Valero; Owner: Antonio Valero
Spain
2010



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017


G. Gibelli, in S. Garovaglio, 1865 Tentamen Dispositionis Methodicae Lichenum In Longobardia Nascentium. Mediolanum
as Verrucaria ricasoli


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Porina_linearis.htm
France, 10/7/2015 - session AFL Bourgogne - Côte-d'Or


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Porina_linearis.htm
France, 10/7/2015 - session AFL Bourgogne - Côte-d'Or


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Porina_linearis.htm
France, 10/7/2015 - session AFL Bourgogne - Côte-d'Or


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1234&lang=en
France, Cap de la Chèvre


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Jardín Botánico Atlántico (Gijón (Asturias), 16-XI-2022, en rocas calizas, leg. & det. M. González ERD-9588.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Jardín Botánico Atlántico (Gijón (Asturias), 16-XI-2022, en rocas calizas, leg. & det. M. González ERD-9588.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Jardín Botánico Atlántico (Gijón (Asturias), 16-XI-2022, en rocas calizas, leg. & det. M. González ERD-9588.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Jardín Botánico Atlántico (Gijón (Asturias), 16-XI-2022, en rocas calizas, leg. & det. M. González ERD-9588.


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Jardín Botánico Atlántico (Gijón (Asturias), 16-XI-2022, en rocas calizas, leg. & det. M. González ERD-9588.