Anisomeridium polypori (Ellis & Everh.) M.E. Barr

in Barr & al., Mem. New York Bot. Gard., 79: 76, 1996. Basionym: Apiospora polypori Ellis & Everh. - North Amer. Pyrenom.: 311, 1892.
Synonyms: Anisomeridium juistense (Erichsen) R.C. Harris; Anisomeridium nyssaegenum (Ellis & Everh.) R.C. Harris; Anisomeridium willeyanum (R.C. Harris) R.C. Harris; Arthopyrenia willeyana R.C. Harris; Didymella polypori (Ellis & Everh.) Ellis & Everh.; Ditremis nyssaegena (Ellis & Everh.) R.C. Harris; Melanopsamma corticola Ellis & Everh.; Mycosphaerella hepaticarum (Pat.) Petrak; Sarcinulella banksiae B. Sutton & Alcorn; Stigmatea hepaticarum Pat.; Thelidium juistense Erichsen; Zygonella nyssaegenum Ellis & Everh.
Distribution: N - Frl (Tretiach & Carvalho 1993), Ven (Thor & Nascimbene 2007), TAA (Thor & Nascimbene 2007, Nascimbene & al. 2014, 2015, Nascimbene 2014, Nimis & al. 2015), Lomb (UPS-L-166802), Piem, Emil (Nimis & al. 1996, Fariselli & al. 2020). C - Tosc (Tretiach & Carvalho 1993, Tretiach & Nimis 1994, Brunialti & Frati 2010, Benesperi 2011), Marc (Nimis & Tretiach 1999). S - Pugl (Nimis & Tretiach 1999), Bas (Bartoli & Puntillo 1996, 1998), Cal (Puntillo 1996).
Description: Thallus crustose, mostly endosubstratic and inconspicuous, effuse, whitish grey to pale grey-green. Perithecia rather rare, 0.15-0.25 mm across, globose to subconical, first immersed, later more or less superficial. Excipulum brown and 30-50 μm thick in upper part; paler and thinner in lower part; involucrellum poorly developed, apical K+ green. Hamathecium of slender, branched and anastomosed, long-celled, c. 1 μm thick pseudoparaphyses; periphyses absent; hymenial gel I-. Asci 8-spored cylindrical-clavate, K/I-, fissitunicate, the apical dome with an indistinct ocular chamber. Ascospores 1-2-septate, hyaline, clavate-fusiform, the part above the primary septum wider and about twice as long as the lower part, (12-)14-20(-23) x (3-)4.5-5(-6) μm. Pycnidia black, prominent, of two types: a) 0.1-0.15 mm across, to 0.2 mm high, sessile, conical, extruding a white, thread-like, very long gelatinous cirrus containing ellipsoid or ovoid macroconidia with a truncate base, 3.5-4.5 x 1.8-2 μm, or 7.5-10 x 3.5-4 μm. b) 0.05-0.1 mm across, mostly immersed, globose, with rod-shaped to narrowly ellipsoid microconidia, 2.3 x 1-1.3 μm. Photobiont trentepohlioid. Spot tests: all negative. Chemistry: no lichen substances.
Note: a mild-temperate, perhaps holarctic species, mainly found on Sambucus along rivers and brooks. Overlooked for a long time, and certainly more widespread throughout Italy, with optimum in the submediterranean belt. For further information see Aptroot (1999).
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

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


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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Felix Schumm CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (31399)
2002/12/03



Felix Schumm – CC BY-SA 4.0
Fig. [14896], Germany, Baden-Württemberg, Kreis Göppingen, Faurndau, Friedhof, 48.70390° N, 9.61455° E, 314 m, TK 7223. Leg. et det. Schumm 21.05.2009



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011



Felix Schumm – CC BY-SA 4.0
[ABL-69726], Madeira, Camacha, Valle Paraiso, on bark. 36°17’ N, 3°25’ E, alt. 750 m. Leg. et det. Aptroot 06.2011