Porina multipuncta (Coppins & P. James) Ertz, Coppins & Frisch

in Ertz & al., Lichenologist, 51, 5: 399, 2019. Basionym: Opegrapha multipuncta Coppins & P. James - in Coppins & al., Lichenologist, 24: 365, 1992.
Synonyms:
Distribution: N - VG (Tretiach 2004), Frl (Tretiach 2004).
Description: Thallus crustose, thinly episubstratic to partially immersed in the bark, effuse, smooth to weakly cracked, dull or dark red-brown, turning grey in the herbarium, sorediate. Soralia bright orange when fresh, turning pale cream-grey in the herbarium, very numerous, punctiform to elliptical, eroded to excavate, 0.1-0.4 mm in diam., mostly remaining discrete, sometimes becoming confluent; soredia 15–45 x 13–25 μm. Perithecia very rare, brown, 0.2–0.3 mm across, immersed in lower part; exciple brown and K– in outer part, orange and K+ orange-red in inner part; paraphyses thread-like, persistent. 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 transversely septate, hyaline, 16–22.5 × 3–5.5 μm. Photobiont trentepohlioid. Spot tests: thallus and soralia K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a mild-temperate lichen found mostly on fruit-trees in orchards; certainly more widespread, also in Tyrrhenian Italy, but overlooked, being always sterile.
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: rare
Padanian area: extremely rare
Humid submediterranean belt: absent
Humid mediterranean belt: absent
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


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (35082)
2002/05/22
detail of soredia



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (35082)
2002/05/22



P.L. Nimis CC BY-SA 4.0
TSB 31264


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1342&lang=en
France, La Palue


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1342&lang=en
France, La Palue


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1342&lang=en
France, La Palue


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1342&lang=en
France, La Palue


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1342&lang=en
France, La Palue