Blennothallia crispa (Huds.) Otálora, P.M. Jørg. & Wedin

Fungal Divers. (online version), 64: 282, 2013. Basionym: Lichen crispus Huds. - Fl. Angl.: 447, 1762.
Synonyms: Blennothallia cheilea (Ach.) Trevis.; Collema anemoides Samp.?; Collema brutium (Jatta) Jatta; Collema cheileum (Ach.) Ach.; Collema cheileum var. brutium Jatta; Collema conchilobum (Flot.) Körb.; Collema crispum (Huds.) F.H. Wigg.; Collema crispum var. metzleri (Arnold) Degel.; Collema granulosum Hoffm.; Collema marginale (Huds.) Hoffm.; Collema platycarpum Durieu & Mont.; Homodium subcuspidans Nyl.
Distribution: N - VG, Frl (Tretiach & Molaro 2007), Ven, TAA, Lomb, Piem (Isocrono & al. 2004, Isocrono & Piervittori 2008), VA (Piervittori & Isocrono 1999), Emil (Nimis & al. 1996, Fariselli & al. 2020), Lig (Valcuvia & al. 2000, Watson 2014, Giordani & al. 2016). C - Tosc (Brackel 2015), Umb (Panfili 2000, 2000b, 2007, Ravera & al. 2006), Marc, Laz (Nimis & Tretiach 2004, Brackel 2015), Abr (Gheza & al. 2021), Mol (Ravera & Genovesi 2010), Sar. S - Camp (Altieri & al. 2000, Aprile & al. 2003, 2003b, Roccardi & Ricci 2006, Garofalo & al. 2010, Catalano & al. 2016), Pugl (Nimis & Tretiach 1999), Bas (Potenza 2006, Brackel 2011, Potenza & Fascetti 2012), Cal (Puntillo 1996, Puntillo & Puntillo 2004), Si (Nimis & al. 1994, 1995, Ottonello & Salone 1994, Ottonello & al. 1994, Ottonello 1996, Poli & al. 1997, Grillo 1998, Caniglia & Grillo 2001, 2005, 2006, Grillo & al. 2002, Grillo & Caniglia 2004).
Description: Thallus foliose, homoiomerous, gelatinous when wet, often forming irregular rosettes, 2-3(-5) cm wide, deeply and broadly lobed. Lobes often crowded and imbricate, 0.5-1(-6) mm wide, rather thin (70-200 µm when wet), rounded, flat or concave, often ascending and ear-shaped, dark green, olive or greenish black (more green in shaded situations), with flattened, c. 0.15-0.3 mm wide isidia which sometimes obscure the thallus. Lower surface with white hapters. Upper and lower cortices absent, but medulla partially paraplectenchymatous. Apothecia rather rare, with slightly constricted base, 1-2(-2.5) mm wide, with a brown disc and a thin, granulose to lobulate thalline margin. True exciple thin, paraplectenchymatous; hymenium colourless, 130-170 µm tall. Asci 8-spored, narrowly clavate, the apex thick, with a I+ blue apical dome and a I+ blue annulus projecting downwardly. Ascospores 3-septate (rarely submuriform), slightly constricted at septa, hyaline, ovoid to subellipsoid, with rounded ends, (18-)26-34(-47) x (9-)13-15(-17) µm. Pycnidia immersed, pale. Conidia bacilliform, usually slightly swollen at the ends, 4.5-6 x 1.5-1.8 µm Photobiont cyanobacterial (Nostoc), in short chains with less than 4 cells. Spot tests: all negative. Chemistry: without lichen substances.
Note: a mainly mild-temperate lichen found both on calcareous rocks and soil, often in rather disturbed habitats such as walls in villages below the subalpine belt; most common in central and southern Italy; the mostly saxicolous, smaller var. metzleri - in my opinion - is hardly worth of an independent taxonomic rank.
Growth form: Foliose, broad lobed
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


pH of the substrata:

(info)

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5

Solar irradiation:

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Aridity:

(info)

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Eutrophication:

(info)

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Poleotolerance:

(info)

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Altitudinal distribution:

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Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (7045)
2001/12/04


Jerzy Opioła – Wikimedia Commons – CC BY-SA 4.0


Jerzy Opioła – Wikimedia Commons – CC BY-SA 4.0



Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm - CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm - CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm – CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm – CC BY-SA 4.0
[13633], Germany, Baden-Württemberg, Kreis Göppingen, Rechberghausen nahe der Gärtnerei Epple, auf Gartenmauer, 48°44,262' N, 9°38,505' E, 340 m. Leg. et det. Schumm 17.02.2008



Felix Schumm – CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm – CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.



Felix Schumm – CC BY-SA 4.0
[14936], Germany, Baden-Württemberg, Kreis Göppingen, Wangen, an Gartenmauern in der Mozartstraße, 48,72414° N, 9,60359° E, 377. Leg. et det. Schumm 04.07.2009.


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


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


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