Cetraria muricata (Ach.) Eckfeldt
Bull. Torrey Bot. Club, 22: 240, 1895. Basionym: Lichen muricatus Ach. - Lichenogr. Suec. Prodr.: 214, 1799.
Synonyms: Cetraria aculeata f. hispida Cromb.; Cetraria aculeata var. alpina Schaer.; Cetraria stuppea (Flot.) Zopf; Coelocaulon aculeatum subsp. hispidum (Cromb.) D. Hawksw.; Coelocaulon muricatum (Ach.) J.R. Laundon; Cornicularia aculeata var. alpina (Schaer.) Rabenh.; Cornicularia aculeata var. muricata (Ach.) Ach.; Cornicularia muricata (Ach.) Ach.; Cornicularia tenuissima var. hispida (Cromb.) Keissl.; Cornicularia tenuissima var. muricata (Ach.) Dalla Torre & Sarnth.
Description: Thallus fruticose, richly dichotomously branched, forming dense, shrubby, loosely attached tufts, matt to glossy brown or almost black, fragile. Branches more or less terete, not dorsiventral, usually rather smooth and even, delicate 1-3(-5) cm tall, spinulose, the main ones 0.3-0.5 mm thick; pseudocyphellae punctiform, flat to slightly depressed, more or less circular, often poorly visible. Cortex three-layered, with a denser, brown outer layer with accumulation of dead cells, an intermediate layer with hyphae more or less sparsely distributed in a gelatinous matrix, and a colourless inner layer with more conglutinated cells; medulla white, lax but usually solid also in basal parts. Apothecia rare (not seen in Italian material), lecanorine, sessile, up to 8 mm across. Epithecium brown; hymenium colourless, 35-50 μm high, I+ blue; paraphyses coherent, the apical cells slightly swollen; hypothecium colourless, underlain by a dense algal layer. Asci 8-spored, narrowly clavate, with a small axial body and a distinct, K/I+ blue ring-structure in the rather large tholus, approaching the Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 5.5-6.5 x 2.5-3.5 μm. Pycnidia dark, terminal or immersed in the spinulose projections. Conidia fusiform, 5-6 x 1-1.5 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-. Chemistry: medulla with lichesterinic and protolichesterinic acids.
Growth form: Fruticose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rather common
Montane belt: very rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: extremely rare
Padanian area: absent
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
Current prediction (1981-2010)
Future prediction (2071-2100) SSP 1-2.6
Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2546)
2001/12/07
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2546)
2001/12/07
detail of pseudocyphellae
Andres Saag; Owner: University of Tartu
Triin Aimla; Owner: University of Tartu
Helena Rodriguez
Spain, Galicia, Peña Trevinca
06.2019
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Growth form: Fruticose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rather common
Montane belt: very rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: extremely rare
Padanian area: absent
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
Current prediction (1981-2010)Future prediction (2071-2100) SSP 1-2.6Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2546)
2001/12/07
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2546)
2001/12/07
detail of pseudocyphellae
Andres Saag; Owner: University of Tartu
Triin Aimla; Owner: University of Tartu
Helena Rodriguez
Spain, Galicia, Peña Trevinca
06.2019
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=979&lang=en
France, Camaret
Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
Marta Gonzalez Garcia - Centro de Estudios Micologicos Asturianos
Spain, Pico del Cuervo (Teverga-Asturias), a 1757 mt de altitud, 21-IX-2023, en suelo, leg. & det. M. González, junto a Cladonia gracilis y C. pleurota.
