Heterodermia speciosa (Wulfen) Trevis.

Atti Soc. Ital. Sc. Nat. Milano, 11: 614, 1868. Basionym: Lichen speciosus Wulfen in Jacquin - Coll. Bot., 3: 119, 1791.
Synonyms: Anaptychia speciosa (Wulfen) A. Massal.; Parmelia speciosa (Wulfen) Ach.; Physcia speciosa (Wulfen) Nyl.; Squamaria speciosa (Wulfen) Frege
Description: Thallus foliose, heteromerous, dorsiventral, narrow-lobed, adpressed, forming orbicular to irregular, 2-3(-4) cm wide rosettes, often coalescing with other thalli forming larger colonies. Lobes linear-elongate, dichotomously branched, (0.5-)1-2 mm wide, flat to slightly convex, slightly widening towards apices, with or without pale marginal cilia. Upper surface ivory white to cream-coloured, the lobe-tips sometimes darkening, with grey to bluish grey soredia in labriform soralia at the tip of lateral lobes. Lower surface white to tan, with a few, scattered, short and robust, usually black rhizines. Upper cortex prosoplectenchymatous; medulla white; lower cortex prosoplectenchymatous. Apothecia extremely rare in European material, lecanorine, 3-8 mm across, with a dark brown disc and a crenulate thalline margin. Asci 8-spored, clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-septate, brown, ellipsoid, (25-)30-37 x (12-)14-18 µm, Pachysporaria-type. Pycnidia very rare, black, immersed. Conidia bacilliform. Photobiont chlorococcoid. Spot tests: cortex K+ yellow, C-, KC-, P+ pale yellow; medulla K+ yellow, C-, KC-, P-. Chemistry: cortex with atranorin and chloroatranorin; medulla with atranorin, zeorin and an unidentified triterpene.
Growth form: Foliose, narrow lobed
Substrata: bark
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)

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Montane belt: rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: extremely rare
Padanian area: absent

pH of the substrata:

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Poleotolerance:

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Altitudinal distribution:

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Rarity

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Predictive map

P.L. Nimis CC BY-SA 04
TSB 5299


A. Aptrroot; Owner: A. Aptroot


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler.


Felix Schumm - CC BY-SA 4.0
[17937], Dominikanische Republik, Prov. La Vega, SE von Constanza am Weg nach Valle Noevo, nahe den Saltos de Aguas Blancas, 18.84852° N, 70.68464° W, 1590 m. Leg. F. Schumm & J.-P. Frahm 02.03.2012


Felix Schumm - CC BY-SA 4.0
[17937], Dominikanische Republik, Prov. La Vega, SE von Constanza am Weg nach Valle Noevo, nahe den Saltos de Aguas Blancas, 18.84852° N, 70.68464° W, 1590 m. Leg. F. Schumm & J.-P. Frahm 02.03.2012


Felix Schumm - CC BY-SA 4.0
[17937], Dominikanische Republik, Prov. La Vega, SE von Constanza am Weg nach Valle Noevo, nahe den Saltos de Aguas Blancas, 18.84852° N, 70.68464° W, 1590 m. Leg. F. Schumm & J.-P. Frahm 02.03.2012


Felix Schumm - CC BY-SA 4.0
[17937], Dominikanische Republik, Prov. La Vega, SE von Constanza am Weg nach Valle Noevo, nahe den Saltos de Aguas Blancas, 18.84852° N, 70.68464° W, 1590 m. Leg. F. Schumm & J.-P. Frahm 02.03.2012


Felix Schumm - CC BY-SA 4.0
[057], Österreich, Land Salzburg, Hohe Tauern, Krimmel, Weg am rechten Aachenufer bis zum Bahnhof, ca 1000 m, an Alnus. Leg. E. Putzler 04.08.1959, det. E. Putzler
at: atranorin, z: zeorin, 1: 6 - acetoxyhopane-16 ,22-diol, 2:16 -acetoxyhopane-6 ,22-diol, 3: leucotylin


P.L. Nimis CC BY-SA 04
TSB 5299


P.L. Nimis CC BY-SA 04
TSB 5299


P.L. Nimis CC BY-SA 04
TSB 9721


P.L. Nimis CC BY-SA 04
TSB 9721


Felix Schumm – CC BY-SA 4.0
Image from: F. Schumm (2008) - Flechten Madeiras, der Kanaren und Azoren. Beck, OHG - ISBN: 978-3-00-023700-3


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1080&lang=en
France, Forêt du Cranou


Felix Schumm - CC BY-SA 4.0
[ABL13658], Brazil, São Paulo, Botucatu, Botanical garden on campus. On bark in park. 22°53'09'' S, 48°29'56'' W, 850 m. Leg. M. Cáceres & A. Aptroot (no 13658), 13 Sept. 2012, det. A. Aptroot 2012.


Felix Schumm - CC BY-SA 4.0
[ABL13658], Brazil, São Paulo, Botucatu, Botanical garden on campus. On bark in park. 22°53'09'' S, 48°29'56'' W, 850 m. Leg. M. Cáceres & A. Aptroot (no 13658), 13 Sept. 2012, det. A. Aptroot 2012.


Felix Schumm - CC BY-SA 4.0
[ABL13658], Brazil, São Paulo, Botucatu, Botanical garden on campus. On bark in park. 22°53'09'' S, 48°29'56'' W, 850 m. Leg. M. Cáceres & A. Aptroot (no 13658), 13 Sept. 2012, det. A. Aptroot 2012.


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Friedergrieß


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Friedergrieß


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Friedergrieß


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Plansee


Felix Schumm - CC BY 4.0
[VZ1743], URSS. Caucasus Magnus, regio montis Elbrus, Verch, Baksan, in valle torrentis Adyrsu, 1900 m. Supra muscos ad saxa in ripa torrentis. Leg. A. Vezda, 25.6.1980. EX A. VEZDA LICHENES SELECTI EXSICCATI NR.1743.


Felix Schumm - CC BY 4.0
[VZ1743], URSS. Caucasus Magnus, regio montis Elbrus, Verch, Baksan, in valle torrentis Adyrsu, 1900 m. Supra muscos ad saxa in ripa torrentis. Leg. A. Vezda, 25.6.1980. EX A. VEZDA LICHENES SELECTI EXSICCATI NR.1743.


Triin Aimla; Owner: University of Tartu