Lathagrium fuscovirens (With.) Otálora, P.M. Jørg. & Wedin

Lathagrium fuscovirens (With.) Otálora, P.M. Jørg. & Wedin

Fungal Divers., 64, 1: 287, 2013. Basionym: Lichen fuscovirens With. - Bot. Arrang. Veget. Gr. Brit.: 717, 1776.

Synonyms: Collema furvum (Ach.) DC.; Collema furvum var. pustulosissimum Harm.; Collema fuscovirens (With.) J.R. Laundon; Collema rupestre var. furvum (Ach.) Rabenh.; Collema stillicidiorum Harm.; Collema subgranosum Harm.; Collema tuniforme (Ach.) Ach.; Lichen furvus Ach.; Lichen tunaeformis Ach.; Parmelia furva (Ach.) Ach.

Distribution: N - VG (Castello 2002, Martellos & Castello 2004), Frl (Tretiach & Molaro 2007), Ven (Nascimbene & Caniglia 1997, Caniglia & al. 1999, Nascimbene & Marini 2007), TAA (Nascimbene & al. 2022), Lomb, Piem (Isocrono & al. 2004, Favero-Longo & al. 2006b), VA (Piervittori & Isocrono 1999), Emil (Fariselli & al. 2020), Lig (Giordani & al. 2016). C - Tosc (Tretiach & Nimis 1994, Benesperi 2011), Marc (Nimis & Tretiach 1999), Umb (Nimis & Tretiach 1999, Ravera & al. 2006, Panfili 2007), Laz, Abr (Nimis & Tretiach 1999, Caporale & al. 2016, Gheza & al. 2021), Mol (Nimis & Tretiach 1999, Caporale & al. 2008, Genovesi & Ravera 2014), Sar (Nascimbene & al. 2023). S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999, Potenza 2006), Cal (Puntillo 1996), Si (Nimis & al. 1994, 1996b, Grillo 1998, Grillo & Caniglia 2004, Liistro & Cataldo 2011).

Description: Thallus foliose, homoiomerous, gelatinous when wet, deeply and broadly lobed, 3-5 cm wide. Lobes 2-6 mm wide, 100-250(-300) µm thick when wet, often repeatedly branched, broadly canaliculated, rounded at tips, the margins not swollen, coarsely undulate. Upper surface dark olive-green to black, paler and subtransparent when moist, often somehow irregularly pustulate, with dense, laminal, mostly globular, up to 0.3 mm thick isidia-like outgrowths. Lower surface paler, with bundles of white hapters. Upper and lower cortex absent. Apothecia not always present, lecanorine, sessile, 0.5-1.5(-2) mm across, with a flat to convex, red-brown disc and a thick, entire, smooth or pseudoisidiate thalline margin. Thalline exciple ecorticate; proper exciple euparaplectenchymatous; epithecium brownish; hymenium colourless, 85-130 µm high, I+ blue; paraphyses simple or sparingly branched in upper part, 2-3 µm thick at mid-level, the apical cells up to 5 µm wide; hypothecium pale yellow. Asci 8-spored, cylindrical-clavate, the apex strongly thickened, the apical dome K/I+ pale blue, with a downwardly projecting K/I+ deep blue tubular structure. Ascospores submuriform or muriform, most often with 3 transverse septa and 1 longitudinal septum, hyaline, ellipsoid to subglobose, 15-24(-28) x 6.5-13(-15) µm. Pycnidia laminal or marginal, immersed or semi-immersed, paler than thallus. Conidia bacilliform or with slightly swollen ends, 4.5-6 x 1.5 µm. Photobiont cyanobacterial (Nostoc, the cells in long chains). Spot tests: all negative. Chemistry: without lichen substances.

Note: a widespread holarctic lichen found on calciferous rocks, more rarely on epilithic mosses, in moderately sheltered sites with some water seepage after rain, with a wide altitudinal range; one of the most common species of the genus in Italy.

Growth form: Foliose, broad lobed

Substrata: rocks

Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)

Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)

On otherwise dry surfaces with short periods of water seepage after rain

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: rather common

Oromediterranean belt: very rare

Montane belt: common

Submediterranean belt: common

Padanian area: very rare

Humid submediterranean belt: common

Humid mediterranean belt: rather common

Dry mediterranean belt: rare

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Felix Schumm - CC BY-SA 4.0

[16577], Germany, Baden-Württemberg, Kreis Esslingen, Neuffen, an Mauern der Ruine Hohenneuffen, 48.55492° N, 9.39356° E, ca. 710 m. Leg. et det. Schumm 12.08.2010.

Triin Aimla; Owner: University of Tartu

Andrea Moro; Owner: Department of Life Sciences, University of Trieste

Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017

Andrea Moro; Owner: Department of Life Sciences, University of Trieste

Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017

Andrea Moro; Owner: Department of Life Sciences, University of Trieste

Italy, Friuli Venezia Giulia, Trieste, Trieste, Conconello
14/02/2017

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

Felix Schumm - CC BY-SA 4.0

[16577], Germany, Baden-Württemberg, Kreis Esslingen, Neuffen, an Mauern der Ruine Hohenneuffen, 48.55492° N, 9.39356° E, ca. 710 m. Leg. et det. Schumm 12.08.2010.

Felix Schumm - CC BY-SA 4.0

[16577], Germany, Baden-Württemberg, Kreis Esslingen, Neuffen, an Mauern der Ruine Hohenneuffen, 48.55492° N, 9.39356° E, ca. 710 m. Leg. et det. Schumm 12.08.2010.

Felix Schumm - CC BY-SA 4.0

[16577], Germany, Baden-Württemberg, Kreis Esslingen, Neuffen, an Mauern der Ruine Hohenneuffen, 48.55492° N, 9.39356° E, ca. 710 m. Leg. et det. Schumm 12.08.2010.

Felix Schumm – CC BY-SA 4.0

[16577], Germany, Baden-Württemberg, Kreis Esslingen, Neuffen, an Mauern der Ruine Hohenneuffen, 48.55492° N, 9.39356° E, ca. 710 m. Leg. et det. Schumm 12.08.2010

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Degelius G. 1954. The lichen genus Collema in Europe: Morphology, Taxonomy, Ecology. Symbolae Bot. Upsal. 13, 2: 1-499.

P.L. Nimis CC BY-SA 04

TSB 31999

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_5/Lathagrium_fuscovirens.htm

France, session AFL 2014 - Côte-d'Or

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1076&lang=en

France, Manosque

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1076&lang=en

France, Manosque

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1076&lang=en

France, Manosque

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1076&lang=en

France, Manosque

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1076&lang=en

France, Manosque

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1076&lang=en

France, Manosque

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Central Europe; Germany: Hesse.

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Central Europe; Germany: Hesse.

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