Rusavskia elegans (Link) S.Y. Kondr. & Kärnefelt subsp. elegans
Ukrayins’kyi Bot. Zhurn., 60: 433, 2003. Basionym: Lichen elegans Link - Ann. Naturges., 1: 37, 1791.
Synonyms: Amphiloma elegans (Link) Körb.; Caloplaca dissidens (Nyl.) Mérat; Caloplaca elegans (Link) Th. Fr.; Caloplaca elegans var. tenuis (Wahlenb.) Th. Fr.; Caloplaca tegularis (Ehrh.) Sandst. non auct.; Gasparrinia elegans (Link) Stein; Physcia miniata sensu A. Massal. et auct. ital. p.p.; Placodium dissidens Nyl.; Placodium elegans (Link) DC.; Placodium elegans var. tenue (Wahlenb.) Nyl.; Xanthoria elegans (Link) Th. Fr. var. elegans; Xanthoria elegans var. tenuis (Wahlenb.) Th. Fr.
Description: Thallus foliose, heteromerous, dorsiventral, tightly adnate, deep orange to orange-red, forming up to 6 cm wide, often confluent rosettes, the central parts sometimes dying off in old thalli. Lobes strongly convex, 0.5-1(-1.3) mm wide, remaining discrete for their entire length, with pale maculae visible at high magnification; lower surface white, rarely with very short, white hapters. Upper and lower cortex mesodermate paraplectenchymatous; medulla white. Apothecia common, lecanorine/zeorine, laminal, substipitate, up to 2.5 mm across, orange to orange-red. Epithecium orange-brown, c. 10 µm thick, K+ purple-red; hymenium colourless, 60-90 µm high; paraphyses simple or sparingly branched, septate, the apical cells swollen; hypothecium colourless to pale brown, 20-80 µm high. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, ellipsoid, (9-)11-16(-18) x 5-9 µm, the equatorial thickening (“septum”) (1-)3-5 µm. Pycnidia immersed, slightly darker than thallus. Conidia narrowly ellipsoid, 2-3.5 x 1-1.5 µm. Photobiont chlorococcoid. Spot tests: upper surface K+ purple-red, C-, KC-, P-, UV+ intensely orange-red. Chemistry: parietin (major), fallacinal, emodin, teloschistin and parietinic acid, corresponding with chemosyndrome A of Søchting (1997).
Growth form: Foliose, narrow lobed
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: very common
Subalpine belt: very 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
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34624)
2002/01/22

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34624)
2002/01/22
apothecium

Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007

Juri Nascimbene - CC BY-SA 4.0; Owner: ITALIC - Dyades Project - Dept. of Life Sciences, University of Trieste
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern
2007

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Felix Schumm – CC BY-SA 4.0
[4764], Schweiz, Kanton Obwalden, Sachsler Seefeld, 12 km südlich Sarnen östl. des kleinen Melchtals, unterer See, ca 1820 m, an Kalkblöcken. Leg. et det. Schumm 04.09.1997

Miris Castello - CC BY-SA 4.0; Owner: Department of Life Sciences - University of Trieste
Antarctica, Terra Nova Bay.
Herbarium: TSB - Antarctic Herbarium

Miris Castello - CC BY-SA 4.0; Owner: Department of Life Sciences - University of Trieste
Antarctica, Terra Nova Bay.
Herbarium: TSB - Antarctic Herbarium

Miris Castello - CC BY-SA 4.0; Owner: Department of Life Sciences - University of Trieste
Antarctica, Terra Nova Bay.
Herbarium: TSB - Antarctic Herbarium

Miris Castello - CC BY-SA 4.0; Owner: Department of Life Sciences - University of Trieste
Antarctica, Terra Nova Bay.
Herbarium: TSB - Antarctic Herbarium

Miris Castello - CC BY-SA 4.0; Owner: Department of Life Sciences - University of Trieste
Antarctica, Terra Nova Bay.
Herbarium: TSB - Antarctic Herbarium

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R3/Rusavskia_elegans.htm
France, 24/7/2014 - Saint-Paul-sur-Ubaye, alt. 2000 m - Alpes-de-Haute-Provence

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R3/Rusavskia_elegans.htm
France, 24/7/2014 - Saint-Paul-sur-Ubaye, alt. 2000 m - Alpes-de-Haute-Provence

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R3/Rusavskia_elegans.htm
France, 24/7/2014 - Saint-Paul-sur-Ubaye, alt. 2000 m - Alpes-de-Haute-Provence

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R3/Rusavskia_elegans.htm
France, 24/7/2014 - Saint-Paul-sur-Ubaye, alt. 2000 m - Alpes-de-Haute-Provence

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Saillagouse, Pyrénées-Orientales 1400 m

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Saillagouse, Pyrénées-Orientales 1400 m

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Vercors

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Vercors

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Vercors

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Vercors

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Vercors

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=962&lang=en
France, Vercors

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Recolectado sobre las piedras de las cabañas de la braña La Mesa (Somiedo-Asturias), 24-X-2021, junto a Polycauliona candelaria., ERD-9111.

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 Physcia elegans

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 opp. Velo 1855
as Physcia elegans

Felix Schumm - CC BY-SA 4.0
[VZR420], Nova Zelandia. South Island. Otago (pars centralis), 45°4.3'
austr., 169°45.8' orient., 1900 m, ad saxa. Leg. & det. W. Malcolm. EX
A. VEZDA: LICHENES RARIORES EXSICCATI NR. 420.

Felix Schumm - CC BY-SA 4.0
[VZR420], Nova Zelandia. South Island. Otago (pars centralis), 45°4.3'
austr., 169°45.8' orient., 1900 m, ad saxa. Leg. & det. W. Malcolm. EX
A. VEZDA: LICHENES RARIORES EXSICCATI NR. 420.
Growth form: Foliose, narrow lobed
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: very common
Subalpine belt: very 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

