Placopyrenium fuscellum (Turner) Gueidan & Cl. Roux
in Navarro-Rosinés & al., Bull. Soc. Linn. Prov., 58: 174, 2007. Basionym: Lichen fuscellus Turner - Trans. Linn. Soc. London, 7: 90, 1804.
Synonyms: Lithocia fuscella (Turner) A. Massal.; Verrucaria fuscella (Turner) Winch; Verrucaria fuscella var. crassa Garov.; Verrucaria fuscella var. subviridula Garov.; Verrucaria glaucelloides Hepp; Verrucaria glaucina sensu Zetterst. et auct. p.p non Ach.; Verrucaria glaucina var. caeruleoalba B. de Lesd.; Verrucaria glaucina var. furva Hue; Verrucaria glaucina var. griseoatra (Kremp.) J. Steiner; Verrucaria glebulosa Nyl.; Verrucaria griseoatra (Kremp.) Servít; Verrucula fuscella (Turner) J. Steiner
Description: Thallus crustose, episubstratic, well developed, areolate, 0.25-0.8 mm thick, often forming small, up to c. 1 cm wide patches, but individual thalli often coalescing to cover larger surfaces, the areoles angular to elongated at margins, 0.3-1.4 x 0.7-1.8 mm, often divided into smaller units by dark lines, the thallus becoming cracked into 0.6-2 mm wide, mature areoles; upper surface pale grey, usually pruinose, the margins and the sides dark brown to black. Cortex poorly defined, paraplectenchymatous, the cell walls with a brown pigment, overlain by an up to 6 μm thick epinecral layer; medulla densely pigmented. Perithecia black, laminal, 1-10(-30) per areole, immersed, 0.19-0.25 mm across, the apex 0.06-0.1 mm diam., flat to slightly convex. Involucrellum absent; exciple colourless to pale brown in lower part, brown in upper part, the pigmented parts K+ darker brown or greenish brown; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above with an indistinct ocular chamber, Verrucaria-type, 40-50 x 14-17 µm. Ascospores 1-celled, hyaline, oblong-ellipsoid, (11.5-)13-17(-20.5) x 4.5-6(-7.5) μm. Pycnidia very rare, laminal, multilocular, Dermatocarpon-type. Conidia simple, hyaline, bacilliform, 3-5 x c. 1.2 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras on Bagliettoa and Verrucaria when young
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: rather common
Montane belt: common
Dry submediterranean belt: very common
Humid submediterranean belt: very common
Padanian area: very rare
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Placopyrenium_fuscellum.htm
France, session AFL 2015 dans le Lot
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Placopyrenium_fuscellum.htm
France, session AFL 2015 dans le Lot
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Placopyrenium_fuscellum.htm
France, session AFL 2015 dans le Lot
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, Sainte Anne la Palud
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, Sainte Anne la Palud
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, Croozn, L'Aber
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
SE-Europe; N-Cyprus; SE of Girne; Beşparmak Mountains; Buffavento Castle (and surroundings)
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
SE-Europe; N-Cyprus; SE of Girne; Beşparmak Mountains; Buffavento Castle (and surroundings)
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
SE-Europe; N-Cyprus; SE of Girne; Beşparmak Mountains; Buffavento Castle (and surroundings)
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in op. Recoaro 1855
as Lithoicea fuscella
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in M. Baldo
as Verrucaria glaucina
Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain
G. Gibelli, in S. Garovaglio, 1865 Tentamen Dispositionis Methodicae Lichenum In Longobardia Nascentium. Mediolanum
as Verrucaria glaucina
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras on Bagliettoa and Verrucaria when young
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: rather common
Montane belt: common
Dry submediterranean belt: very common
Humid submediterranean belt: very common
Padanian area: very rare
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Placopyrenium_fuscellum.htm
France, session AFL 2015 dans le Lot
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Placopyrenium_fuscellum.htm
France, session AFL 2015 dans le Lot
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Placopyrenium_fuscellum.htm
France, session AFL 2015 dans le Lot
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, Sainte Anne la Palud
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, Sainte Anne la Palud
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, Croozn, L'Aber
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=lichens&lettre=P&lang=en
France, L'Aber
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
SE-Europe; N-Cyprus; SE of Girne; Beşparmak Mountains; Buffavento Castle (and surroundings)
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
SE-Europe; N-Cyprus; SE of Girne; Beşparmak Mountains; Buffavento Castle (and surroundings)
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
SE-Europe; N-Cyprus; SE of Girne; Beşparmak Mountains; Buffavento Castle (and surroundings)
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in op. Recoaro 1855
as Lithoicea fuscella
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in M. Baldo
as Verrucaria glaucina
Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain
