Parmotrema reticulatum (Taylor) M. Choisy

Bull. Mens. Soc. Linn. Lyon, 21: 175, 1952. Basionym: Parmelia reticulata Taylor in Mackay - Fl. Hibern., 2: 148, 1836.
Synonyms: Parmelia amphigymnoides Gyeln.; Parmelia cetrata auct. p.p. non Ach.; Parmelia concors Kremp.; Parmelia decorata (Hue) C.W. Dodge; Parmelia diffusoides Gyeln.; Parmelia odontata var. rubiginosa Sambo; Parmelia ornata (Hue) C.W. Dodge; Rimelia reticulata (Taylor) Hale & A. Flechter
Description: Thallus foliose, heteromerous, dorsiventral, broad-lobed, loosely attached, 4-20(-30) cm in diam., sorediate. Lobes elongate, slightly overlapping, 5-15 mm wide, crenate at margins, rounded and sometimes subascending at apices, the margins thin, with black, simple, up to 3 mm long cilia, sometimes eciliate. Upper surface pale grey to grey-green, smooth, dull, strongly reticulately white-maculate, with mostly marginal, convex to subcapitate soralia which often arise on small lacinulate lobes (sometimes becoming diffuse in old specimens). Lower surface black, with a narrow, papillate and erhizinate zone at margin, centrally with mostly simple, black rhizines. Upper cortex of tightly packed, anticlinally oriented hyphae, with a pored epicortex, the cell walls with lichenan intermediate between the Cetraria- and the Xanthoparmelia-types; medulla white; algal layer continuous; lower cortex prosoplectenchymatous, with rounded and thick-walled cells. Apothecia extremely rare, lecanorine, submarginal, substipitate, up to 8 mm across, with a sometimes perforate, brown disc and a raised thalline margin. Epithecium brownish; hymenium and hypothecium colourless. Asci 8-spored, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 10-18 x 7.5-11 µm. Pycnidia rare, punctiform, black, immersed. Conidia filiform, (7.5-)12-16 x 1-1.5 µm. Photobiont clorococcoid. Spot tests: upper cortex K+ yellow, C-, KC-, P- or P+ faintly yellow; medulla K+ yellow turning orange-red, C-, KC- or KC+ red, P+ orange-red, UV-. Chemistry: upper cortex with atranorin and chloroatranorin; medulla with salazinic acid (major) and consalazinic acid (minor).
Growth form: Foliose, broad lobed
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
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: absent
Dry submediterranean belt: extremely rare
Humid submediterranean belt: rather 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

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


Felix Schumm - CC BY-SA 4.0
[19126], New Zealand, South Island, Otago, rocky hillside, c. 27.5 km west-south-west of Ranfurly on Alexandra-Palmerston road, on rock outcrop with E aspect in paddock. Leg. J. Johnston (2123), 15.03.1985.


Felix Schumm - CC BY-SA 4.0
[19125], Norfolk Island, Bumboras Reserve, 29°03'30'' S, 167°56'30'' E, 25 m, on volcanic rocks in open Araucaria woodland. Leg. J.A. Elix (18833) & H. Streimann, 10.12.1984. LICH. AUSTRALASICI EXS. NO. 089.


A. Moro; Owner: Department of Life Sciences, University of Trieste
Sicilia, TP, Isola di Marettimo
2008.04.05


A. Moro; Owner: Department of Life Sciences, University of Trieste
Sicilia, TP, Isola di Marettimo
2008.04.05


A. Moro; Owner: Department of Life Sciences, University of Trieste
Sicilia, TP, Isola di Marettimo
2008.04.05


Harry Taylor; Owner: Natural History Museum London


Andrea Moro; Owner: Department of Life Sciences, University of Trieste
Island of Marettimo, Sicily


Felix Schumm - CC BY-SA 4.0
[19125], Norfolk Island, Bumboras Reserve, 29°03'30'' S, 167°56'30'' E, 25 m, on volcanic rocks in open Araucaria woodland. Leg. J.A. Elix (18833) & H. Streimann, 10.12.1984. LICH. AUSTRALASICI EXS. NO. 089.


Felix Schumm - CC BY-SA 4.0
[19125], Norfolk Island, Bumboras Reserve, 29°03'30'' S, 167°56'30'' E, 25 m, on volcanic rocks in open Araucaria woodland. Leg. J.A. Elix (18833) & H. Streimann, 10.12.1984. LICH. AUSTRALASICI EXS. NO. 089.


Felix Schumm - CC BY-SA 4.0
[19125], Norfolk Island, Bumboras Reserve, 29°03'30'' S, 167°56'30'' E, 25 m, on volcanic rocks in open Araucaria woodland. Leg. J.A. Elix (18833) & H. Streimann, 10.12.1984. LICH. AUSTRALASICI EXS. NO. 089.


Felix Schumm - CC BY-SA 4.0
[19125], Norfolk Island, Bumboras Reserve, 29°03'30'' S, 167°56'30'' E, 25 m, on volcanic rocks in open Araucaria woodland. Leg. J.A. Elix (18833) & H. Streimann, 10.12.1984. LICH. AUSTRALASICI EXS. NO. 089.


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (31967)
2001/12/05


Felix Schumm - CC BY-SA 4.0
[19126], New Zealand, South Island, Otago, rocky hillside, c. 27.5 km west-south-west of Ranfurly on Alexandra-Palmerston road, on rock outcrop with E aspect in paddock. Leg. J. Johnston (2123), 15.03.1985.


Felix Schumm - CC BY-SA 4.0
[12830], Spanien, Kanaren, La Palma (NE), La Galga südlich von Sauces, auf dem Weg durch den Barranco de la Galga zum Mirador de la Somada Alte. Ca. 28°46’ N, 17°46’ W, 350m-780m, bei 490 m. Leg. F. Schumm 12.01.2007, det. Schumm 2007.


Felix Schumm - CC BY-SA 4.0
[12830], Spanien, Kanaren, La Palma (NE), La Galga südlich von Sauces, auf dem Weg durch den Barranco de la Galga zum Mirador de la Somada Alte. Ca. 28°46’ N, 17°46’ W, 350m-780m, bei 490 m. Leg. F. Schumm 12.01.2007, det. Schumm 2007.


Felix Schumm - CC BY-SA 4.0
[12830], Spanien, Kanaren, La Palma (NE), La Galga südlich von Sauces, auf dem Weg durch den Barranco de la Galga zum Mirador de la Somada Alte. Ca. 28°46’ N, 17°46’ W, 350m-780m, bei 490 m. Leg. F. Schumm 12.01.2007, det. Schumm 2007.


Felix Schumm - CC BY-SA 4.0
[12830], Spanien, Kanaren, La Palma (NE), La Galga südlich von Sauces, auf dem Weg durch den Barranco de la Galga zum Mirador de la Somada Alte. Ca. 28°46’ N, 17°46’ W, 350m-780m, bei 490 m. Leg. F. Schumm 12.01.2007, det. Schumm 2007.


Felix Schumm - CC BY-SA 4.0
[19126], New Zealand, South Island, Otago, rocky hillside, c. 27.5 km west-south-west of Ranfurly on Alexandra-Palmerston road, on rock outcrop with E aspect in paddock. Leg. J. Johnston (2123), 15.03.1985.
at: atranorin, sa: salazinic acid, p: protocetraric acid (trace)


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


Manuel Gil
Spain, Canary Islamds, Lanzarote


Manuel Gil
Spain, Canary Islamds, Lanzarote


Giulio Pandeli
Italy, Toscana, Livorno
04.2021


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


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (21650)
2002/02/20
pseudocyphellae


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Parmotrema_reticulatum.htm
France, 4/3/2013 - île de Cavallo - Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Porz Kreguen


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Cap de la Chèvre


ALain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe de Pen-Hir


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Forêt du Cranou


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe de Rostudel


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe du Raz


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe du Raz


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Telgruc sur mer


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Toulinguet


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe du Guern


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe du Guern


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Pointe du Guern


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Plogonnec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Plogonnec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Porz Kreguen


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=472&lang=en
France, Hôpital-Camfrout


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


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


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


Felix Schumm - CC BY-SA 4.0
[ABL42049], Brazil, Bahia, Chapada Diamantina, Palmeiras, Morro do Pai Inácio. On tree on table mountain. 12°27'24'' S, 41°28'20'' W, 1050 -1140 m. Leg. M. Cáceres & A. Aptroot (no 42049), 23.07.2017, det. A. Aptroot, 2017. - Soralia marginal linear to subcapitate. Spores 13-18 x 8-11 μm. Chemistri: Cortex K+ yellow; medulla K+ yellow then red, C-, P+ orange red; TLC: atranorin, chloroatranorin, salazinic acid (major), consalazinic acid (minor).


Felix Schumm - CC BY-SA 4.0
[ABL42049], Brazil, Bahia, Chapada Diamantina, Palmeiras, Morro do Pai Inácio. On tree on table mountain. 12°27'24'' S, 41°28'20'' W, 1050 -1140 m. Leg. M. Cáceres & A. Aptroot (no 42049), 23.07.2017, det. A. Aptroot, 2017. - Soralia marginal linear to subcapitate. Spores 13-18 x 8-11 μm. Chemistri: Cortex K+ yellow; medulla K+ yellow then red, C-, P+ orange red; TLC: atranorin, chloroatranorin, salazinic acid (major), consalazinic acid (minor).


Felix Schumm - CC BY-SA 4.0
[ABL42049], Brazil, Bahia, Chapada Diamantina, Palmeiras, Morro do Pai Inácio. On tree on table mountain. 12°27'24'' S, 41°28'20'' W, 1050 -1140 m. Leg. M. Cáceres & A. Aptroot (no 42049), 23.07.2017, det. A. Aptroot, 2017. - Soralia marginal linear to subcapitate. Spores 13-18 x 8-11 μm. Chemistri: Cortex K+ yellow; medulla K+ yellow then red, C-, P+ orange red; TLC: atranorin, chloroatranorin, salazinic acid (major), consalazinic acid (minor).


Felix Schumm - CC BY-SA 4.0
[ABL42849], Brazil, Alagoas, Quebrangulo, Pedra Talhada private area. In Atlantic rain forest on tree bark. 9°15’ S, 36°25’35’’ W, 500-700 m. Leg. M. Cáceres & A. Aptroot (no 42849), 21-23.10.2017. Det. A. Aptroot, 2017.


Felix Schumm - CC BY-SA 4.0
[ABL42849], Brazil, Alagoas, Quebrangulo, Pedra Talhada private area. In Atlantic rain forest on tree bark. 9°15’ S, 36°25’35’’ W, 500-700 m. Leg. M. Cáceres & A. Aptroot (no 42849), 21-23.10.2017. Det. A. Aptroot, 2017.


Felix Schumm - CC BY-SA 4.0
[ABL42849], Brazil, Alagoas, Quebrangulo, Pedra Talhada private area. In Atlantic rain forest on tree bark. 9°15’ S, 36°25’35’’ W, 500-700 m. Leg. M. Cáceres & A. Aptroot (no 42849), 21-23.10.2017. Det. A. Aptroot, 2017.


Felix Schumm - CC BY-SA 4.0
[ABL42849], Brazil, Alagoas, Quebrangulo, Pedra Talhada private area. In Atlantic rain forest on tree bark. 9°15’ S, 36°25’35’’ W, 500-700 m. Leg. M. Cáceres & A. Aptroot (no 42849), 21-23.10.2017. Det. A. Aptroot, 2017.


Felix Schumm - CC BY 4.0
[15155]. La Reunion, nordöstlich von Bourg-Murat, Col de Bellevue, verbuschte Weidevegetation, nebelfeucht; 21,17797°S, 55,58010°E, 1617 m. Leg. F. Schumm & J.-P. Frahm, 09.09.2009, det. F. Schumm, 2009. - Mark K+ gelb rasch rot.


Felix Schumm - CC BY 4.0
[15155]. La Reunion, nordöstlich von Bourg-Murat, Col de Bellevue, verbuschte Weidevegetation, nebelfeucht; 21,17797°S, 55,58010°E, 1617 m. Leg. F. Schumm & J.-P. Frahm, 09.09.2009, det. F. Schumm, 2009. - Mark K+ gelb rasch rot.


Felix Schumm - CC BY 4.0
[15345], La Reunion, östlich von Bourg-Murat am Beginn des Nationalparks, Cryptomeriawald; 21,15051°S, 55,47630°E, 1730 m. Leg. F. Schumm & J.-P. Frahm, 11.09.2009, det. F. Schumm


Felix Schumm - CC BY 4.0
[15345], La Reunion, östlich von Bourg-Murat am Beginn des Nationalparks, Cryptomeriawald; 21,15051°S, 55,47630°E, 1730 m. Leg. F. Schumm & J.-P. Frahm, 11.09.2009, det. F. Schumm


Felix Schumm - CC BY 4.0
[15345], La Reunion, östlich von Bourg-Murat am Beginn des Nationalparks, Cryptomeriawald; 21,15051°S, 55,47630°E, 1730 m. Leg. F. Schumm & J.-P. Frahm, 11.09.2009, det. F. Schumm


Felix Schumm - CC BY-SA 4.0
[VZR135], Italia. Sardinia. Distr. Sassari: Palau, in monte Altura, 70 m. Ad saxa granitica. Leg. F. Ceni & A. Vezda, 16.5.1994. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 135.


Felix Schumm - CC BY-SA 4.0
[VZR135], Italia. Sardinia. Distr. Sassari: Palau, in monte Altura, 70 m. Ad saxa granitica. Leg. F. Ceni & A. Vezda, 16.5.1994. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 135.


Felix Schumm - CC BY-SA 4.0
[VZR135], Italia. Sardinia. Distr. Sassari: Palau, in monte Altura, 70 m. Ad saxa granitica. Leg. F. Ceni & A. Vezda, 16.5.1994. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 135.