Usnea rubicunda Stirt.
Scottish Natur., 6: 102, 1881.
Synonyms: Usnea protensa Stirt.; Usnea sublurida Stirt.
Description: Thallus fruticose-filamentous, reddish-brown at least in basal parts, otherwise greenish-grey with red-brown flecks at least in basal parts, at first shrubby, later becoming subpendulous, (3-)5-15(-20) cm long, branching anisotomic-dichotomously with divergent branches. Main branches up to 2 mm thick, not inflated, frequently transversally or longitudinally cracked, the basal parts darker or concolouruos, with conspicuous annular cracks; lateral branches not constricted at attachment point. Papillae absent to numerous but usually indistinct on main branches; tubercles absent to numerous on main and secondary branches, usually absent on terminal branches, short and verrucose, sometimes eroded at top; fibrils nearly absent to numerous, short and spinulose to long and slender, irregularly distributed on the whole thallus. Soralia punctiform, irregular in outline, even or slightly stipitate, flat to erumpent, developing initially from the cortex (on the whole thallus) or on top of tubercles (on main branches), or on fibercles (on the main and secondary branches), covered in abundant, clustered isidiomorphs. Cortex moderately thick to thick (9-13% of total branch thickness), shiny to vitreous in longitudinal section; medulla white, dense to compact; central axis white, rather thick (40-56%). Apothecia very rare, lecanorine. Asci 8-spored, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid. Photobiont chlorococcoid. Spot tests and chemistry: cortex K-, C-, KC-, P-, with usnic acid; medulla with 2 chemotypes: 1) K+ yellow slowly turning orange, C-, KC-, P+ deep orange, with stictic acid (main) and norstictic and psoromic acids (accessory); 2) K+ yellow turning red, C-, KC-, P+ orange, with salazinic acid (main) and norstictic acid (accessory).
Growth form: Fruticose filamentous
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: extremely rare
Dry submediterranean belt: absent
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
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Occurrence data
Predictive map

Tiiu Tõrra; Owner: Tiiu Tõrra - Institute of Ecology and Earth Sciences, University of Tartu, Estonia

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (19732)
2001/12/12

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (19732)
2001/12/12
main branch

Tiiu Tõrra; Owner: Tiiu Tõrra - Institute of Ecology and Earth Sciences, University of Tartu, Estonia

Tiiu Tõrra; Owner: Tiiu Tõrra - Institute of Ecology and Earth Sciences, University of Tartu, Estonia

Tiiu Tõrra; Owner: Tiiu Tõrra - Institute of Ecology and Earth Sciences, University of Tartu, Estonia

Tiiu Tõrra; Owner: Tiiu Tõrra - Institute of Ecology and Earth Sciences, University of Tartu, Estonia

Tiiu Tõrra; Owner: Tiiu Tõrra - Institute of Ecology and Earth Sciences, University of Tartu, Estonia

Felix Schumm - CC BY-SA 4.0
[11046], Portugal, Azoren, Sao Miguel: Südufer des Lagoa das Furnas, 270 m, 37°45.022' N, 25°19.807' W, Schumm 03.06.2003

Felix Schumm - CC BY-SA 4.0
[11046], Portugal, Azoren, Sao Miguel: Südufer des Lagoa das Furnas, 270 m, 37°45.022' N, 25°19.807' W, Schumm 03.06.2003

Felix Schumm - CC BY-SA 4.0
[19290], Australia, Queensland, Crediton State Forest, 16 km southwest of Finch Hatton, 21°15' S, 148°31' E, 700 m, growing on dead logs in Eucalyptus grandis dominated woodland. Leg. J.A. Elix (21063) & H. Streimann, 01.07.1986.

Felix Schumm - CC BY-SA 4.0
[19290], Australia, Queensland, Crediton State Forest, 16 km southwest of Finch Hatton, 21°15' S, 148°31' E, 700 m, growing on dead logs in Eucalyptus grandis dominated woodland. Leg. J.A. Elix (21063) & H. Streimann, 01.07.1986.

Felix Schumm - CC BY-SA 4.0
[19290], Australia, Queensland, Crediton State Forest, 16 km southwest of Finch Hatton, 21°15' S, 148°31' E, 700 m, growing on dead logs in Eucalyptus grandis dominated woodland. Leg. J.A. Elix (21063) & H. Streimann, 01.07.1986.

Felix Schumm - CC BY-SA 4.0
[19290], Australia, Queensland, Crediton State Forest, 16 km southwest of Finch Hatton, 21°15' S, 148°31' E, 700 m, growing on dead logs in Eucalyptus grandis dominated woodland. Leg. J.A. Elix (21063) & H. Streimann, 01.07.1986.
us: usnic acid, sti: stictic acid, m: menegazziaic acid, cs: constictic acid, no: norstictic acid. Rem.: atranorin (at) and strong no in solvent A is a mistake

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_U/Usnea_rubiconda.htm
France, vril 2011

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_U/Usnea_rubiconda.htm
France, vril 2011

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Crozon

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Crozon

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Crozon

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Crozon

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Landevennec

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Landevennec

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
France, Lostmarc'h

Antonio Valero Risoto - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
Spain, La Coruña

Antonio Valero Risoto - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
Spain, La Coruña

Antonio Valero Risoto - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=263&lang=en
Spain, La Coruña

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Pointe de Dinan
on soil

Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Pointe de Dinan
on soil

Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Pointe de Dinan
on soil

Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Pointe de Dinan
on soil

Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Pointe de Dinan
on soil

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Camaret
on soil

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Camaret
on soil

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Camaret
on soil

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Camaret
on soil

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=916&lang=en
France, Camaret
on soil

Bernard Bouffiiner - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Bernard Bouffiiner - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Bernard Bouffiiner - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Crozon
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=912&lang=en
France, Camaret
fertile

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arcallana (Cudillero-Asturias), 13-II-2024, sobre Pinus sp., leg. & det. M. González, MGG-76.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arcallana (Cudillero-Asturias), 13-II-2024, sobre Pinus sp., leg. & det. M. González, MGG-76.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arcallana (Cudillero-Asturias), 13-II-2024, sobre Pinus sp., leg. & det. M. González, MGG-76.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arcallana (Cudillero-Asturias), 13-II-2024, sobre Pinus sp., leg. & det. M. González, MGG-76.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arcallana (Cudillero-Asturias), 13-II-2024, sobre Pinus sp., leg. & det. M. González, MGG-76.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arcallana (Cudillero-Asturias), 13-II-2024, sobre Pinus sp., leg. & det. M. González, MGG-76.

Source: Gauslaa, Y. & Timdal, E. 2020. Usnea rubicunda new to Scandinavia. Graphis Scripta 32 (6): 110–119. Oslo. ISSN 2002-4495. - CC BY-4.0

Source: Gauslaa, Y. & Timdal, E. 2020. Usnea rubicunda new to Scandinavia. Graphis Scripta 32 (6): 110–119. Oslo. ISSN 2002-4495. - CC BY-4.0

Felix Schumm - CC BY 4.0
[14996], La Reunion, beim Kraterrand des Piton Maido, Ginster-Erica-
Gebüschvegetation mit Lavablöcken; 21,07100°S, 55,38788°E, 2090
m. Leg. F. Schumm & J.-P. Frahm, 07.09.2009, det. F. Schumm

Felix Schumm - CC BY 4.0
[14996], La Reunion, beim Kraterrand des Piton Maido, Ginster-Erica-
Gebüschvegetation mit Lavablöcken; 21,07100°S, 55,38788°E, 2090
m. Leg. F. Schumm & J.-P. Frahm, 07.09.2009, det. F. Schumm
Growth form: Fruticose filamentous
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: extremely rare
Dry submediterranean belt: absent
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

