Coenogonium pineti (Ach.) Lücking & Lumbsch

in Lücking & al., Mycologia, 96: 290, 2004. Basionym: Lecidea pineti Schrad. ex Ach. - Lichenogr. Univ.: 195, 1810.
Synonyms: Biatora pineti (Ach.) Fr.; Biatorina diluta (Pers.) Th. Fr.; Biatorina pineti (Ach.) A. Massal.; Dimerella diluta (Pers.) Trevis.; Dimerella pineti (Ach.) Vězda; Gyalecta alnicola B. de Lesd.; Gyalecta diluta (Pers.) Blomb. & Forssell; Gyalecta pineti (Ach.) Tuck.; Gyalecta rosea (Eitner) Zahlbr.; Microphiale diluta (Pers.) Zahlbr.; Peziza diluta Pers. non Fr.
Distribution: N - VG (Carvalho 1997), Frl, Ven (Thor & Nascimbene 2007, Nascimbene & al. 2008e, 2013b, Nascimbene 2008, 2008c, Nascimbene & Marini 2010), TAA (Nascimbene 2006b, 2008b, 2013, 2014, Thor & Nascimbene 2007, Nascimbene & al. 2007b, 2008c, 2014, Nascimbene & Marini 2015, Nimis & al. 2015), Lomb, Piem (Isocrono & al. 2004), Emil (Nimis & al. 1996, Tretiach & al. 2008), Lig (Brunialti & al. 1999, Putortì & al. 1999b, Giordani & Incerti 2008). C - Tosc (Tretiach & Nimis 1994, Loppi & al. 1997b, Stofer 2006, Benesperi & al. 2007, Brunialti & Frati 2010, Benesperi 2011, Paoli & al. 2012, Brackel 2015, Nascimbene & al. 2015), Umb (Ravera 1998, Ravera & al. 2006, Panfili 2007), Laz (Ravera & al. 1999, 2003, Massari & Ravera 2002, Stofer 2006, Ravera 2006c, Munzi & al. 2007, Zucconi & al. 2013), Abr (Nimis & Tretiach 1999, Brackel 2015, Caporale & al. 2016), Mol (Caporale & al. 2008, Paoli & al. 2015), Sar (Rizzi & al. 2011). S - Camp (Puntillo & al. 2000, Nimis & Tretiach 2004, Brunialti & al. 2010, 2013, Ravera & Brunialti 2013), Pugl (Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1995, 1996, Sérusiaux 1998, Chiappetta 2000, Puntillo & Puntillo 2004, Incerti & Nimis 2006), Si (Ottonello & Romano 1997, Ottonello & al. 2011).
Description: Thallus crustose, superficial, continuous, very thin, smooth to fine-grained, greyish-green, sometimes evanescent. Apothecia lecideine, 0.1-0.4 mm across, sessile, round, clearly constricted at base, with a concave to flat, whitish to pinkish yellow disc and a thin, smooth, persistent margin. Proper exciple well-developed, paraplectenchymatous; hymenium colourless, 70-90 μm tall, I+ blue then quickly reddish brown, K/I+ blue; paraphyses unbranched, 1-2 µm thick, the apical cells c. 4 µm wide; hypothecium colourless. Asci 8-spored, narrowly cylindrical, the apex slightly thickened to give an amyloid ring around the pore, Catillaria-type, with uniseriate ascospores. Ascospores 1-septate, hyaline, fusiform to ellipsoid, 9-13 x 2-3(-4) μm. Pycnidia more or less immersed, whitish. Conidia oblong, 6-8 x 1.8-2.8 µm. Photobiont trentepohlioid. Spot tests: all negative. Chemistry: no lichen substances.
Note: a probably holarctic lichen, most common on acid bark, both of conifers and of broad-leaved trees, below the subalpine belt; certainly widespread throughout the country, especially in non-heavily disturbed semi-natural areas with a humid climate.
Growth form: Crustose
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


pH of the substrata:

(info)

1

2

3

4

5

Solar irradiation:

(info)

1

2

3

4

5

Aridity:

(info)

1

2

3

4

5

Eutrophication:

(info)

1

2

3

4

5

Poleotolerance:

(info)

0

1

2

3

Altitudinal distribution:

(info)

1

2

3

4

5




P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (30796)
2008.03.06


G. Incerti; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32297)
2001/11/26


Andres Saag; Owner: University of Tartu


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (36794)
2008.02.25


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (36794)
2008.02.25


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (29759)
2008.03.06


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (30796)
2008.03.06


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (30796)
2008.03.06


Domenico Puntillo; Owner: Domenico Puntillo
Italy


Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)