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.
Distribution: N - Frl (Tretiach 1993), Ven (Tretiach 1993, Lazzarin 1997, Nascimbene & al. 2007, 2009c), TAA (Nascimbene 2001b, Nascimbene & al. 2007b, Nimis & al. 2015), Lomb (Philippi 1983 Tretiach 1993,), Piem (Tretiach 1993, Isocrono & al. 2004), VA (Piervittori & Isocrono 1999), Emil, Lig (Brunialti & al. 2001). C - Tosc (Tretiach 1993), Marc, Abr (Nimis & Tretiach 1999), Laz, Sar (Zedda 2002, Rizzi & al. 2011). S - Camp (Aprile & al. 2003b), Cal (Tretiach 1993, Puntillo 1996), Si (Nimis & al. 1994).
Description: Thallus foliose, heteromerous, dorsiventrl, narrow-lobed, adpressed, forming orbicular to irregular rosettes, 2-3(-4) cm diam., often coalescing with other thalli forming larger colonies. Lobes linear-elongate, dichotomously branched, (0.5-)1-2 mm broad,, flat to slightly convex, slightly widening towards apices, with pale marginal cilia. Upper surface 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 rare, lecanorine, 3-8 mm across. Asci 8-spored, Lecanora-type. Ascospores 1-septate, brown, ellipsoid, 30-37 x 14-18 µm, Pachysporaria-type. Pycnidia very rare, black, immersed. Conidia bacilliform. Photobiont chlorococcoid. Spot tests: cortex K+ yellow C-, KC-, P+ yellow; medulla K+ yellow, C-, KC-, P-. Ckemistry: cortex with atranorin and chloroatranorin; medulla with atranorin, zeorin and an unidentified triterpene.
Note: a temperate species found on bark, epiphytic bryophytes, sometimes on mossy rocks in humid, mostly montane woodlands. It is included in the Italian red list of epiphytic lichens as “Near-threatened” (Nascimbene & al. 2013c).
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
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: extremely rare
Padanian area: absent
Humid submediterranean belt: very rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent


pH of the substrata:

(info)

1

2

3

4

5

Solar irradiation:

(info)

1

2

3

4

5

Aridity:

(info)

1

2

3

4

5

Eutrophication:

(info)

1

2

3

4

5

Poleotolerance:

(info)

0

1

2

3

Altitudinal distribution:

(info)

1

2

3

4

5




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


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9721)
2001/11/24


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9721)
2001/11/24


Triin Aimla; Owner: University of Tartu


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5299)
2008.03.06


P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5299)
2008.03.06


A. Aptrroot; Owner: A. Aptroot


A. Aptrroot; Owner: A. Aptroot


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; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5299)
2008.03.06