Toniniopsis mesoidea (Nyl.) Timdal

in Kistenich & al., Taxon, 676: 898, 2018.. Basionym: Lecidea mesoidea Nyl. - Flora, 51: 457, 1868.
Synonyms: Bilimbia mesoidea (Nyl.) A.L. Sm.; Toninia mesoidea (Nyl.) Zahlbr.
Distribution: C - Sar. S - Si (TSB 17320).
Description: Thallus crustose, rimose-areolate, dark brown to olive-brown, epruinose, consisting of up to 0.5 mm wide, flat to convex areoles. Upper cortex absent or very poorly developed, up to 40 μm thick, lacking crystals; medulla white, lacking crystals. Apothecia lecideine, black, epruinose, up to 0.8 mm across, at first flat and distinctly marginate, then slightly convex and immarginate. Proper exciple dark reddish brown in outer part, paler within, K-, N-; epithecium dark green, K-, N+ violet; hymenium colourless, 50-60 μm high; paraphyses not conglutinated, simple or sparingly branched and anastomosing in upper part, thin-walled, the apical cell distinctly swollen and covered by a gelatinous pigment cap; hypothecium dark brown, often faintly greenish in uppermost part. Asci 8-spored, clavate, surrounded by a gelatinous I+ blue coat, with a well-developed I+ blue tholus with a darker blue tube and a well-developed ocular chamber, Bacidia-type. Ascospores 3-septate, hyaline, ellipsoid to shortly bacilliform, often slightly curved or tear-shaped, 13-17.5 x 5-6.5 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances.
Note: a very poorly known, perhaps Mediterranean-Atlantic species of maritime siliceous rocks.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
Poorly known taxon in need of further study
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: very rare

pH of the substrata:

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(info)

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

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Landevennec



Elena Pittao CC BY-SA 4.0; Owner: Dept. of Life Sciences, University of Trieste
TSB 17320



Elena Pittao CC BY-SA 4.0; Owner: Dept. of Life Sciences, University of Trieste
TSB 17320



Elena Pittao CC BY-SA 4.0; Owner: Dept. of Life Sciences, University of Trieste
TSB 17320


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Goulien



Elena Pittao CC BY-SA 4.0; Owner: Dept. of Life Sciences, University of Trieste
TSB 17320


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel


Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Pointe de Dinan


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Le Loc'h


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, St. Anne la Palud


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Pentrez


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Porz Gwen


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Sainte Anne la Palud


Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=121&lang=en
France, Roscanvel