Scytinium plicatile (Ach.) Otálora, P.M. Jørg. & Wedin

Fungal Divers., 64, 1: 291, 2013. Basionym: Lichen plicatilis Ach. - K. Vetensk.-Akad. Nya Handl., 16: 11, 1795.
Synonyms: Collema hydrocharum (Ach.) Ach.; Collema plicatile (Ach.) Ach.; Collemodium plicatile (Ach.) Nyl.; Leptogium cataclystum (Körb.) Harm.; Leptogium cataclystum var. fluctuans (Kremp.) Zahlbr.; Leptogium firmum Nyl.; Leptogium hydrocharum (Ach.) Zahlbr.; Leptogium plicatile (Ach.) Leight.; Leptogium plicatile f. subplicatile Hue
Distribution: N - VG, Frl (Tretiach & Molaro 2007), Ven (Nascimbene & Caniglia 2003c), TAA, Lomb, Piem (Isocrono & al. 2004), VA (Matteucci & al. 2013), Emil (Fariselli & al. 2020), Lig (Watson 2014). C - Tosc (Ravera & al. 2024a), Marc, Umb (Genovesi & Ravera 2001, Ravera & al. 2006), Abr (Nimis & Tretiach 1999), Mol (Nimis & Tretiach 1999, Caporale & al. 2008), Sar. S - Camp (Nimis & Tretiach 2004), Pugl (Nimis & Tretiach 1999), Bas (Potenza & al. 2014), Cal (Puntillo & Puntillo 2004), Si (Nimis & al. 1996b).
Description: Thallus subfoliose to squamulose, gelatinous when wet, rigid when dry, forming firmly attached, irregular,1-5 cm wide, irregular rosettes. Lobes rounded, 150-350 µm thick, strongly swelling when wet, 1-3 mm wide, with ascending, twisted, often divided and pleated margins, dark brown-black with a reddish or olive tinge, uneven, matt, often ridged, sometimes with coarse, clustered, isidia-like warts. Lower surface paler brown, wrinkled, with scattered tufts of white hapters. Upper and lower cortices poorly developed, consisting of an up to 4 µm thick, single layer of irregularly isodiametrical cells, the layer inbetween with loosely interwoven chains of Nostoc and hyphae. Apothecia lecanorine, laminal to marginal, sessile, 0.5-1.5 mm wide, with a brown, concave to flat disc and an entire, raised thalline margin. Proper exciple euparaplectenchymatous, 55-90 µm wide laterally; epithecium brownish; hymenium colourless, 135-160 µm high, I+ blue; paraphyses mostly simple, c. 1 µm thick at mid-level, the apical cells slightly swollen; hypothecium colourless to pale yellow, 50-60 µm high. Asci 8-spored, narrowly clavate, the apex strongly thickened, the apical dome K/I+ pale blue, with a downwardly projecting K/I+ deep blue tubular structure. Ascospores submuriform, with 3 transverse septa and 1 longitudinal septum, hyaline, ellipsoid to subfusiform, (18-)20-28(-35) x (7-)8-16 µm. Photobiont cyanobacterial (Nostoc, the cells in short chains). Spot test: all negative. Chemistry: without lichen substances.
Note: a mainly mild-temperate to Mediterranean lichen found on steeply inclined, but not fully sun-exposed seepage tracks of more or less calcareous rocks.
Growth form: Foliose, narrow lobed
Substrata: rocks
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain

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: rather common
Humid mediterranean belt: rare
Dry mediterranean belt: extremely 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


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (33057)
2001/12/08



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (33057)
2001/12/08
isidia



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5800)
2001/11/26
shade-form



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Curtis Randall Björk – CC BY-SA 4.0
British Columbia, Clearwater Valley Date: 2012-04-02 On siliceous rock calc-modified by seepage, in open forest


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Identified by Eichler/Cezanne).


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Identified by Eichler/Cezanne).


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Identified by Eichler/Cezanne).


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Identified by Eichler/Cezanne). Parasitized by Didymellopsis pulposi



Felix Schumm - CC BY-SA 4.0
[2747], Austria, Mittelösterreich, Hohe Tauern: massenweise an senkrechten, halbschattigen, gelegentlich überrieselten Breccienwänden im Toninietum candidae Kais., 1200 m, SO, pH 7,3, im Kaiser Tal unter 60 dem Roten Kogel in der südlichen Granatspitzgruppe. Leg. G. Follmann 08.1977, det A. Vezda 02.1978. EX G. FOLLMANN: LICHENES EXSICCATI SELECTI A MUSEO HISTORIAE NATURALIS CASSELENSI EDITI NR. 274.



Felix Schumm - CC BY-SA 4.0
[2747], Austria, Mittelösterreich, Hohe Tauern: massenweise an senkrechten, halbschattigen, gelegentlich überrieselten Breccienwänden im Toninietum candidae Kais., 1200 m, SO, pH 7,3, im Kaiser Tal unter 60 dem Roten Kogel in der südlichen Granatspitzgruppe. Leg. G. Follmann 08.1977, det A. Vezda 02.1978. EX G. FOLLMANN: LICHENES EXSICCATI SELECTI A MUSEO HISTORIAE NATURALIS CASSELENSI EDITI NR. 274.



Felix Schumm - CC BY-SA 4.0
[2987], Germany, Süddeutschland, Schwarzwald, Klostermauer des Klosters Alpirsbach, Buntsandstein, senkrecht, trocken, SO-Mauer, TK 7616. Leg. F. Schumm & S. Gärtner, 01.10.1983, det. F. Schumm, 1983.



Felix Schumm - CC BY-SA 4.0
[2987], Germany, Süddeutschland, Schwarzwald, Klostermauer des Klosters Alpirsbach, Buntsandstein, senkrecht, trocken, SO-Mauer, TK 7616. Leg. F. Schumm & S. Gärtner, 01.10.1983, det. F. Schumm, 1983.