Roccella fuciformis (L.) DC.

in Lamarck & de Candolle, Fl. Franç., éd. 3, 2: 335, 1805. Basionym: Lichen fuciformis L. - Sp. Pl., 2: 1147, 1753.
Synonyms: Roccella teneriffensis Vain.
Distribution: N - Lig. C - Tosc, Laz (Herb. Nascimbene 7019), Sar (Monte 1993, Nöske 2000, Zedda 2002). S - Pugl (Nimis & Tretiach 1999, Durini & Medagli 2004), Si (Ottonello & Romano 1997, Grillo 1998, Grillo & Caniglia 2004, Ottonello & al. 2006a, 2011).
Description: Thallus fruticose, shrubby, pendulous, up to 20(-30) cm long, sorediate, attached by a single basal holdfast. Branches strap-shaped, flattened, smooth, grey to pale lilac-grey, up to 1.5 cm wide, irregularly branched, progressively tapering, with pointed ends, with more or less circular to irregular, grey-white, mostly marginal soralia. Cortex with a palisade plectenchyma; medulla and basal holdfast white. Apothecia lecanorine, very rare, black, marginal or laminal, 1-2 mm across. Hymenium colourless; paraphysoids branched-anastomosing; hypothecium dark brown to black. Asci 8-spored, thick-walled, fissitunicate, with an internal beak and a small K/I+ blue ring in the thickened apex. Ascospores 3-septate, hyaline, fusiform, straight or slightly curved 22-30 x 4-7 µm. Photobiont trentepohlioid. Spot tests: cortex K+ pale yellow, C-, KC-, P-; medulla C-; soralia C+ and KC+ red; soralia and medulla UV+ blue-white. Chemistry: erythrin, roccellic and lepraric acids.
Note: a supralittoral Mediterranean-Macaronesian species found on steeply inclined or rain-sheltered surfaces of a wide variety of rocks (mainly calcareous) exposed to humid maritime winds, mostly in rather shaded situations; much rarer and less heliophytic than R. phycopsis; absent from the Adriatic coast north of Puglia.
Growth form: Fruticose

Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: very 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 (10404)
2001/12/01



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (10404)
2001/12/01



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (19733)
2001/12/01
detail of soredia


Caterina Azara; Owner: Caterina Azara
Italy, Sardegna, Golfo di Arzachena
2010


Caterina Azara; Owner: Caterina Azara
Italy, SArdegna, M. Moro (Arzachena).
Herbarium: Forum Natura Mediterraneo
2010


Caterina Azara; Owner: Caterina Azara
Italy, SArdegna, M. Moro (Arzachena).
Herbarium: Forum Natura Mediterraneo
2010


Caterina Azara; Owner: Caterina Azara
Italy, SArdegna, M. Moro (Arzachena).
Herbarium: Forum Natura Mediterraneo
2010


Caterina Azara; Owner: Caterina Azara
Italy, SArdegna, M. Moro (Arzachena).
Herbarium: Forum Natura Mediterraneo
2010


Caterina Azara; Owner: Caterina Azara
Italy, SArdegna, M. Moro (Arzachena).
Herbarium: Forum Natura Mediterraneo
2010


Caterina Azara; Owner: Caterina Azara
Italy, Sardegna, M. Moro (Arzachena).
Herbarium: Forum Natura Mediterraneo
2010


Manuel Gil
Spain, Canary Islands, Lanzarote



Felix Schumm - CC BY-SA 4.0
Spanien, Kanarische Inseln, Teneriffa, Puerto de la Cruz, nahe der Hotelanlage La Romantica, auf Mauern. Leg. et det Schumm 15.03.1978. [7272]



Felix Schumm - CC BY-SA 4.0
Spanien, Kanarische Inseln, Teneriffa, Puerto de la Cruz, nahe der Hotelanlage La Romantica, auf Mauern. Leg. et det Schumm 15.03.1978. [7272]



Felix Schumm - CC BY-SA 4.0
Spanien, Kanarische Inseln, Teneriffa, Puerto de la Cruz, nahe der Hotelanlage La Romantica, auf Mauern. Leg. et det Schumm 15.03.1978. [7272]



Felix Schumm - CC BY-SA 4.0
Spanien, Kanarische Inseln, Teneriffa, Puerto de la Cruz, nahe der Hotelanlage La Romantica, auf Mauern. Leg. et det Schumm 15.03.1978. [7272]


Nere Sorrentino
Spain, Canary Islands


Nere Sorrentino
Spain, Canary Islands


Nere Sorrentino
Spain, Canary Islands



Felix Schumm – CC BY-SA 4.0
Image from: F. Schumm (2008) - Flechten Madeiras, der Kanaren und Azoren. Beck, OHG - ISBN: 978-3-00-023700-3


Manuel Gil
Spain, Canary Islands, Lanzarote


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Cap de la Chèvre


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Crozon


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe de Pen-Hir


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe de Primel


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe de Primel


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe de Toulinguet


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Crozon


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Ile de Sein


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Toulinguet


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Crozon
fertile


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Crozon
fertile


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Camaret


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1392&lang=en
France, Cleder


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1392&lang=en
France, Cleder


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1392&lang=en
France, Ile de Sein


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1392&lang=en
France, Cleder


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1392&lang=en
France, Cleder


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe du Guern


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe du Guern


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=53&lang=en
France, Pointe du Guern