Poeltinula hochstetteri (Körb.) E.J. Möller, Timdal, Haugan & Bendiksby
Fungal Syst. and Evol, 16: 224, 2025. Basionym: Catillaria hochstetteri Körb. - Parerga Lichenol.: 195, 1861.
Synonyms: Biatorina concreta auct. p.p. non (Ach.) Mudd; Buellia chlorospora (Nyl.) Hellb.; Buellia colludens Arnold; Buellia hochstetteri (Körb.) Mong.; Catillaria colludens (Arnold) Jatta; Catillaria concreta auct. p.p. non (Ach.) A. Massal.; Catocarpus applanatum (Fr.) Arnold; Catocarpus koerberi Stein; Lecidea applanata (Fr.) Leight.; Lecidea atroalba var. applanata Fr.; Lecidea atroalba var. chlorospora Nyl.; Lecidea colludens (Arnold) Nyl.; Lecidea hochstetteri var. colludens (Arnold) Vain.; Rhizocarpon applanatum (Fr.) Th. Fr.; Rhizocarpon concretum auct. p.p. non (Schaer.) Zahlbr. nec (Ach.) Elenkin; Rhizocarpon crenulatum H. Magn.; Rhizocarpon hochstetteri (Körb.) Vain.; Rhizocarpon massalongoi sensu Malme non (Körb.)
Distribution: N - Frl, Ven, TAA (Nascimbene & al. 2022), Lomb, Piem (Isocrono & al. 2004, 2006), VA (Favero-Longo & al. 2006, Isocrono & al. 2008, Favero-Longo & Piervittori 2009), Emil (Fariselli & al. 2020). C - Tosc, Sar (Rizzi & al. 2011). S - Si (Nimis & al. 1996b, Brackel 2008b).
Description: Thallus crustose, episubstratic, grey-brown to red-brown, rimose to areolate, usually delimited by a black prothallus. Areoles flat to convex, 0.2-0.6(-1) mm wide, 0.1-0.3 mm thick. Medulla white, I-. Apothecia, lecideine, black, developing among the areoles, (0.4-)0.6-1(-1.3) mm across, with a flat to slightly convex disc and a distinct, usually persistent but finally sometimes excluded proper margin. Proper exciple of radiating, dark brown hyphae; epithecium green to blue-black, K-, N+ red; hymenium colourless, 95-150 µm high I+ blue; paraphysoids coherent both in water and in K, branched and anastomosing, 2.5-3 µm thick at mid-level, the apical cells to 3.5 µm, with a dark cap; hypothecium dark brown. Asci 8-spored, clavate, fissitunicate, with a well-developed tholus, lacking an ocular chamber, Rhizocarpon-type. Ascospores 1-septate, hyaline or sometimes pale grey-brown when overmature, (15-)21-25(-29) x (5-)8-14 µm, halonate. Photobiont chlorococcoid, the cells 10-15(-18) µm wide. Spot tests; medulla K- or rarely K+ yellow, C-, KC-, P- or rarely P+ orange. Chemistry: medulla with stictic acid, or without lichen substances. Note: a widespread, probably northern holarctic lichen found on mineral-rich siliceous rocks, in seepage tracks and near creeks; most common in the Alps below the Alpine belt, rare in the mountains of Southern Italy.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: rather common
Oromediterranean belt: extremely rare
Montane belt: rather rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (8327)
2001/12/01
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (8327)
2001/12/01
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Felix Schumm - CC BY-SA 4.0
[1448], Österreich, Großglockner Hochalpenstraße, Silikatuntergrund,
ca. 1800 m. Leg. F. Schumm, 05.08.1969, det. Oscar Klement,
01.05.1970. - Sporen 8/ ascus, 1-septate, 20-22 x 11-12 μm, hymenium
92-100 μm high, excipulum black, carbonized, lacking algae.
Felix Schumm - CC BY-SA 4.0
[1448], Österreich, Großglockner Hochalpenstraße, Silikatuntergrund,
ca. 1800 m. Leg. F. Schumm, 05.08.1969, det. Oscar Klement,
01.05.1970. - Sporen 8/ ascus, 1-septate, 20-22 x 11-12 μm, hymenium
92-100 μm high, excipulum black, carbonized, lacking algae.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte,
Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg.
et det. Erich Putzler. 06.08.1954.
Photo by E. Timdal. Source: Möller E.J., Timdal E., Haugan R., Bendiksby M. 2025. Integrative taxonomy and genus delimitation in the Rhizocarpaceae (lichenized Ascomycota). Fungal Syst. Evol., 16: 215-231. – CC BY-NC-ND
A–C. Rhizocarpon
hochstetteri, Norway, O-L-227846. Scale bars: A = 100 μm; B, C = 10 μm
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: rather common
Oromediterranean belt: extremely rare
Montane belt: rather rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
DOLICHENS
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (8327)
2001/12/01
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (8327)
2001/12/01
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R/Textes_R/Rhizocarpon_hochstetteri.htm
France, 4/3/2015 - Mont Cenis - Vanoise - Haute-Savoie
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, La Farrapona (Saliencia-Somiedo), 30-V-2024, en rocas ácidas junto a Circinaria cupreogrisea, Rhizocarpon geographicum y Acarospora veronensis, a 1.700 m de altitud.
Felix Schumm - CC BY-SA 4.0
[1448], Österreich, Großglockner Hochalpenstraße, Silikatuntergrund, ca. 1800 m. Leg. F. Schumm, 05.08.1969, det. Oscar Klement, 01.05.1970. - Sporen 8/ ascus, 1-septate, 20-22 x 11-12 μm, hymenium 92-100 μm high, excipulum black, carbonized, lacking algae.
Felix Schumm - CC BY-SA 4.0
[1448], Österreich, Großglockner Hochalpenstraße, Silikatuntergrund, ca. 1800 m. Leg. F. Schumm, 05.08.1969, det. Oscar Klement, 01.05.1970. - Sporen 8/ ascus, 1-septate, 20-22 x 11-12 μm, hymenium 92-100 μm high, excipulum black, carbonized, lacking algae.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
Felix Schumm - CC BY-SA 4.0
[10559], Österreich, Niedere Tauern, Donnersbacher Alpen, Morsbachhütte, Weg zur hinteren Morsbachalm, an Gneisblock, ca. 1400 m.Leg. et det. Erich Putzler. 06.08.1954.
