Porina coralloidea P. James

Lichenologist, 3: 142, 1971.
Synonyms: Porina stoechadiana F. Rose & Cl. Roux; Zamenhofia coralloidea (P. James) Clauzade & Cl. Roux; Zamenhofia stoechadiana (F. Rose & Cl. Roux) Clauzade & Cl. Roux
Distribution: C - Tosc, Laz (Hafellner & Kalb 1995, Stofer 2006, Tretiach 2014). S - Camp (Nimis & Tretiach 2004), Cal (Puntillo 1996, Sérusiaux 1998), Si (Nimis & al. 1994).
Description: Thallus crustose, episubstratic, grey with a pinkish hue when fresh, isidiate. Isidia usually crowded, 0.1-0.2 x 0.04-0.07 mm, simple or rarely branched, elongate-ovoid to cylindrical, the apex often paler, formed of a tuft of hyaline hyphae resembling thin hairs. Perithecia black, 0.3-0.4 mm across, semi-immersed in the thallus, scattered, sometimes not obviously associated with the thallus. Involucrellum dark purplish-brown to purple-violet (Pseudosagedia-violet pigment), K+ dark grey-brown, HCl+ red-purple to red-brown; exciple yellow to brownish yellow (Porina-yellow pigment), K+ orange; hamathecium of simple or rarely branched paraphyses; hymenial gel I-, K/I-. Asci 8-spored, clavate-cylindrical, thin-walled, functionally unitunicate, I-, K/I-, the apex truncate and containing a refractive ring which stains with Congo Red. Ascospores (6-)9-11(-12)-septate, hyaline, elongate-ellipsoid, (35-)40-57(-65) x (5-)8-13(-15) μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances.
Note: a humid subtropical to Mediterranean-Atlantic lichen found on old, moderately sheltered trunks (e.g. of Quercus ilex) in humid areas, with a clearly Tyrrhenian range in Italy. It is included in the Italian red list of epiphytic lichens as “Vulnerable” (Nascimbene & al. 2013c).
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)
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: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
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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Predictive model
Herbarium samples
Index Fungorum GBIF


E. Pittao CC BY-SA 04
TSB 9926



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15325)
2001/12/15



E. Pittao CC BY-SA 4.0
TSB 9926



E. Pittao CC BY-SA 4.0
TSB 9926



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15336)
2001/12/15



E. Pittao CC BY-SA 4.0
TSB 15815



E. Pittao CC BY-SA 4.0
TSB 9926


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=260&lang=en
France, Forêt du Cranou


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=260&lang=en
France, Forêt du Cranou


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=260&lang=en
France, Forêt du Cranou


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=260&lang=en
France, Forêt du Cranou


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=260&lang=en
France, Forêt du Cranou