Rinodina gennarii Bagl.

Comm. Soc. Critt. Ital., 1: 17, 1861.
Synonyms: Buellia alocizoides (Leight.) A.L. Sm.; Lecanora atra var. accumulata Ach.; Lecanora subexigua Nyl.; Rinodina cinerascens J. Steiner; Rinodina demissa (Flörke) Arnold; Rinodina exigua var. obscurata H. Magn.; Rinodina pallida H. Magn.; Rinodina salina Degel.; Rinodina subexigua (Nyl.) H. Olivier
Distribution: N - VG, Frl, Ven, TAA, Lomb (De Vita & Valcuvia 2004), Piem (Isocrono & al. 2004, Giordani & al. 2014), VA (Piervittori & Isocrono 1999, Valcuvia 2000, Matteucci & al. 2015c), Emil (Nimis & al. 1996, Valcuvia & Savino 2000, Fariselli & al. 2020), Lig (Giralt & Llimona 1997). C - Tosc (Pinna & al. 2018), Laz (Genovesi & al. 2011), Sar (Rizzi & al. 2011, Giordani & al. 2013, Cossu 2013, Cossu & al. 2015). S - Camp (Aprile & al. 2002), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996, Puntillo & Puntillo 2004), Si (Caniglia & Grillo 2003, Grillo & Caniglia 2004, Iacolino & Ottonello 2006, Brackel 2008b, Ottonello & al. 2011, Cataldo & Cannavò 2014).
Description: Thallus crustose, thinly episubstratic, rimose to rimose-areolate, sometimes reduced to a few small areoles around the apothecia, dark grey to grey-brown, dull, rarely delimited by a dark prothallus. Apothecia lecanorine, abundant and usually crowded, adnate, 0.3-0.5(-0.7) mm across, with a dark brown to almost black, epruinose, flat to markedly convex disc and a thin, smooth, finally rarely excluded thalline margin. Proper exciple thin; epithecium dark brown, 5-15 µm high, K-; hymenium colourless, 60-80 µm high, K/I+ blue; paraphyses 1.5-2.5 µm thick at mid-level, not very coherent, the apical cells 3-6 µm wide; hypothecium colourless. Asci 8-spored, narrowly clavate to clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-septate, brown, broadly ellipsoid, sometimes slightly curved, (11-)13-16(-17) x 6-9(-10) µm, Dirinaria-type, not thickened at apex and slightly swollen at septum in K, the ontogeny of type B (apical thickenings visible before the insertion of the septum). Pycnidia immersed in thallus, black, pyriform. Conidia bacilliform, 4-6 x c. 1 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a mainly temperate species found on base-rich or slightly calciferous siliceous substrata, e.g. calciferous schists and sandstone, often also in small urban settlements, on brick walls, mortar, and roofing tiles, mostly below the subalpine belt. The species is very closely related to the epiphytic R. oleae, so much that it was considered as a synonym of the latter by Kaschik (2006).
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9127)
2001/11/29


Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Harrie Sipman - Source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Rinodina.htm


Manuel Gil
Spain, Canary Islands, Tenerife


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rinodina_gennarii.htm
France, La-Roche-sur-Foron - Haute-Savoie


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Tregarvan


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Plougastel-Daoulas


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Plougastel-Daoulas


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Plougastel-Daoulas


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Plougastel-Daoulas


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Ardennes


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Ardennes


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Cailleux sur mer


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Cailleux sur mer


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Cailleux sur mer


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Cailleux sur mer


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=616&lang=en
France, Cailleux sur mer