Pannaria tavaresii P.M. Jørg.

Pannaria tavaresii P.M. Jørg.

Opera Bot., 45: 68, 1978.

Synonyms: Pannaria rubiginosa f. isidiosa Tav.

Distribution: N - Emil (Tretiach & al. 2008, Fariselli & al. 2020). C - Sar. S - Cal (Puntillo 1996).

Description: Thallus small-foliose, isidiate, forming up to 3 cm wide, orbicular rosettes developing on a black hypothallus which sometimes extends beyond the margins. Lobes contiguous, concave with raised margins, 3-4 mm wide and up 8 mm long, whitish or bluish grey to partly pale brown, scabrid or slightly pruinose, with granular to coralloid, mainly marginal, sometimes black-tipped isidia. Upper cortex paraplectenchymatous, 40-50 µm thick; medulla white; lower cortex absent. Apothecia lecanorine, up to 1 mm across, with a red-brown disc and a thick, often crenulate, sometimes isidiate thalline margin. Proper exciple subparaplectenchymatous, 30-40 µm thick; epithecium brownish; hymenium colourless, 100-150 µm high, I+ blue near the asci; paraphyses mostly simple, the apical cells hardly swollen; hypothecium colourless. Asci 8-spored, clavate to subcylindrical, with a well developed, non-amyloid or very weakly amyloid tholus lacking internal structures, and an intensely amyloid, thin outer sheath. Ascospores 1-celled, hyaline, ellipsoid, measuring 20-24 x 10-12 µm with epispore; 15-19 x 9-10 µm without epispore. Photobiont cyanobacterial (Nostoc, the cells in clusters). Spot tests: thallus K-, C-, KC-, P+ orange. Chemistry: pannarin.

Note: a rare epiphytic species with a mainly southwestern distribution in Europe, restricted to Lobarion-communities in humid forests. It is included in the Italian red list of epiphytic lichens as “Vulnerable” (Nascimbene & al. 2013c).

Growth form: Squamulose

Substrata: bark

Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)

Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Restricted to humid-warm, oceanic areas

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: extremely rare

Humid mediterranean belt: extremely rare

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

P.L. Nimis CC BY-SA 4.0

TSB 19734

E. Pittao

TSB 19734)

E. Pittao

TSB 34839)

E. Pittao

TSB 34839)

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (19734)
2001/11/28

Felix Schumm CC BY-SA 4.0

[8630], PORTUGAL, MADEIRA: an der Straße bei Portela, 32°44.812’ N, 16°49.623’ W, 575 m, an Zeder. Leg. F. Schumm, 15.04.2001 (13), conf. P.M. Jorgensen 2008

Felix Schumm CC BY-SA 4.0

[8630], PORTUGAL, MADEIRA: an der Straße bei Portela, 32°44.812’ N, 16°49.623’ W, 575 m, an Zeder. Leg. F. Schumm, 15.04.2001 (13), conf. P.M. Jorgensen 2008

Felix Schumm CC BY-SA 4.0

[8630], PORTUGAL, MADEIRA: an der Straße bei Portela, 32°44.812’ N, 16°49.623’ W, 575 m, an Zeder. Leg. F. Schumm, 15.04.2001 (13), conf. P.M. Jorgensen 2008

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 CC BY-SA 4.0

TSB 15734

P.L. Nimis CC BY-SA 4.0

TSB 15734

P.L. Nimis CC BY-SA 4.0

TSB 15734

P.L. Nimis CC BY-SA 4.0

TSB 15734

P.L. Nimis CC BY-SA 4.0

TSB 15734

P.L. Nimis CC BY-SA 4.0

TSB 15734

E. Pittao

TSB 19734)

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Spain; Canary Islands; La Gomera. (700 m) on volcanic rock

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Spain; Canary Islands; La Gomera. (700 m) on volcanic rock

Felix Schumm - CC BY-SA 4.0

[ABL27945], Brazil, Santa Catarina, São Francisco do Sul, S of Prainha. 26°14'06'' S, 48°30'05'' W, 10 m. On coastal granite. Leg. M. Cáceres & A. Aptroot (no 27945), 8 October 2015, det. A. Aptroot 2015.

Felix Schumm - CC BY-SA 4.0

[ABL27945], Brazil, Santa Catarina, São Francisco do Sul, S of Prainha. 26°14'06'' S, 48°30'05'' W, 10 m. On coastal granite. Leg. M. Cáceres & A. Aptroot (no 27945), 8 October 2015, det. A. Aptroot 2015.

Source: https://nhm2.uio.no/typephotos/lichens/arkiv/O-L-000764d.jpg

U.S.A., COLORADO, LARIMER CO.: Larimer Co.: Loveland Heights, 1953.07.26, Dahl, E. - HOLOTYPE

Felix Schumm - CC BY-SA 4.0

[10169], Spanien, Kanarische Inseln, La Gomera: westlich von San Sebastian nicht weit vor der Abzweigung nach Playa Santiago. 28°05.744' N, 17°10.290' W, 840 m; Basaltblöcke in einem reich mit Kleinia bewachsenen SO-Abhanges; licht-, wind-, nebeloffen (Viel Ramalina/Roccella). Leg. F. Schumm, 17.04.2003, det. F. Schumm 2004, conf. P. M. Jørgensen, 2007. - P+ orange,

Felix Schumm - CC BY-SA 4.0

[10169], Spanien, Kanarische Inseln, La Gomera: westlich von San Sebastian nicht weit vor der Abzweigung nach Playa Santiago. 28°05.744' N, 17°10.290' W, 840 m; Basaltblöcke in einem reich mit Kleinia bewachsenen SO-Abhanges; licht-, wind-, nebeloffen (Viel Ramalina/Roccella). Leg. F. Schumm, 17.04.2003, det. F. Schumm 2004, conf. P. M. Jørgensen, 2007. - P+ orange,

Felix Schumm - CC BY-SA 4.0

[VZR133], Insulae Canarienses, Tenerife, Montañas de Anaga, Pico de Inglés, 900 m. Ad truncos arborum in Laurisilva. Leg. F. Ceni, A. V zda, 9.3.1994, det. A. V zda. EX A. V ZDA: LICHENES RARIORES EXSICCATI NR. 133.

Felix Schumm - CC BY-SA 4.0

[VZR133], Insulae Canarienses, Tenerife, Montañas de Anaga, Pico de Inglés, 900 m. Ad truncos arborum in Laurisilva. Leg. F. Ceni, A. V zda, 9.3.1994, det. A. V zda. EX A. V ZDA: LICHENES RARIORES EXSICCATI NR. 133.

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife

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