Cladonia rei Schaer.

Lich. Helv. Spicil., 1, 1: 34, 1823.
Synonyms: Cladonia fimbriata var. nemoxyna (Ach.) Coëm.; Cladonia nemoxyna (Ach.) Arnold
Description: Primary thallus squamulose, persistent or evanescent, the squamules small, up to c. 3 mm long, incised, greenish to pale brownish grey above, white beneath. Podetia elongate, hollow inside, pale brownish grey, (1-)3-5 cm tall, 1.5-2 mm thick, simple or sparingly branched, with pointed apices, more rarely with irregular small cups, often corticate and squamulose in lower half (the cortex verrucose-granular), granulose-sorediate in upper part, the soredia (20-)30-60 μm in diam. Apothecia rather rare, terminal, brown, convex. Asci 8-spored, clavate, thickened at apex, with a K/I+ blue tholus and a K/I+ strongly blue outer gelatinous sheath, Cladonia-type. Spores 1-celled, hyaline, ellipsoid. Pycnidia brown, at the tips of podetia or rarely on the margins of squamules, with a colourless jelly. Conidia hyaline, curved. Photobiont chlorococcoid. Spot tests: podetia K-, C-, KC-, P+ red or P-, UV+ white or UV-. Chemistry: homosekikaic and sekikaik acids, sometimes with additional fumarprotocetraric acid.
Growth form: Fruticose

Substrata: soil, terricolous mosses, and plant debris
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: rare
Humid submediterranean belt: very rare
Padanian area: extremely rare

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Rarity

absent
extremely rare
very rare
rare
rather rare
rather common
common
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extremely common
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Occurrence data
Predictive map
Model ImageCurrent prediction (1981-2010)
Model ImageFuture prediction (2071-2100) SSP 1-2.6
Model ImageFuture prediction (2071-2100) SSP 5-8.5
Predictive maps according to Francesconi et al. 2025

Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13739)
2001/12/04
detail of base of podetium


Felix Schumm - CC BY-SA 4.0
[20300], Austria, Salzburg, Eastern Alps, Lower Tauern, Pongau region (= St. Hohann im Pongau District), 2.3 km N of the centre of Bischofshofen, 2 km SSE of Pfarrwerfen, Sinnhub, 47°26'25'' N, 13°12'48'' E, 540, on rotten wood and debris (on roofing shingles of Larix decidua). Leg.R. Türk (58198), 16.07.2017, det. H. Mayrhofer. DUPLA GRAECENSIA LICHENUM NR. 449.


Felix Schumm – CC BY-SA 4.0
[2856], Spanien, Kanarische Inseln, Hierro, 400 m, NO-NW, pH 6,6, Sabinar de la Dehesa in der Sturmzone an der westlichen Inselabdachung. Leg. G. Follmann & Hernández-Padrón März 1980. Det. T. Ahti 3.1980. Lich. Exs. Sel. Mus. Casselensi Ed. 327.


Felix Schumm – CC BY-SA 4.0
[2856], Spanien, Kanarische Inseln, Hierro, 400 m, NO-NW, pH 6,6, Sabinar de la Dehesa in der Sturmzone an der westlichen Inselabdachung. Leg. G. Follmann & Hernández-Padrón März 1980. Det. T. Ahti 3.1980. Lich. Exs. Sel. Mus. Casselensi Ed. 327.


Felix Schumm – CC BY-SA 4.0
[2856], Spanien, Kanarische Inseln, Hierro, 400 m, NO-NW, pH 6,6, Sabinar de la Dehesa in der Sturmzone an der westlichen Inselabdachung. Leg. G. Follmann & Hernández-Padrón März 1980. Det. T. Ahti 3.1980. Lich. Exs. Sel. Mus. Casselensi Ed. 327.


Felix Schumm – CC BY-SA 4.0
[19499], Germany, Hessen, Amöneburg bei Marburg, sonnige Basaltblöcke in einer Hangwiese kurz vor dem Ortseingang, 50.7896° N, 8.91995° E, 324 m. Leg. F. Schumm, 01.08.2016, det. F. Schumm.


Felix Schumm – CC BY-SA 4.0
[19499], Germany, Hessen, Amöneburg bei Marburg, sonnige Basaltblöcke in einer Hangwiese kurz vor dem Ortseingang, 50.7896° N, 8.91995° E, 324 m. Leg. F. Schumm, 01.08.2016, det. F. Schumm.


Felix Schumm – CC BY-SA 4.0
[19499], Germany, Hessen, Amöneburg bei Marburg, sonnige Basaltblöcke in einer Hangwiese kurz vor dem Ortseingang, 50.7896° N, 8.91995° E, 324 m. Leg. F. Schumm, 01.08.2016, det. F. Schumm.


Felix Schumm – CC BY-SA 4.0
[2856], Spanien, Kanarische Inseln, Hierro, 400 m, NO-NW, pH 6,6, Sabinar de la Dehesa in der Sturmzone an der westlichen Inselabdachung. Leg. G. Follmann & Hernández-Padrón März 1980. Det. T. Ahti 3.1980. Lich. Exs. Sel. Mus. Casselensi Ed. 327.,
193 Cladonia rei pr: protocetraric acid, fpr: fumarprotocetraric acid, HS: homosekikaic acid


Felix Schumm – CC BY-SA 4.0
[2856], Spanien, Kanarische Inseln, Hierro, 400 m, NO-NW, pH 6,6, Sabinar de la Dehesa in der Sturmzone an der westlichen Inselabdachung. Leg. G. Follmann & Hernández-Padrón März 1980. Det. T. Ahti 3.1980. Lich. Exs. Sel. Mus. Casselensi Ed. 327.,
193 Cladonia rei pr: protocetraric acid, fpr: fumarprotocetraric acid, HS: homosekikaic acid


Felix Schumm – CC BY-SA 4.0
[19499], Germany, Hessen, Amöneburg bei Marburg, sonnige Basaltblöcke in einer Hangwiese kurz vor dem Ortseingang, 50.7896° N, 8.91995° E, 324 m. Leg. F. Schumm, 01.08.2016, det. F. Schumm.


Felix Schumm - CC BY-SA 4.0
[20300], Austria, Salzburg, Eastern Alps, Lower Tauern, Pongau region (= St. Hohann im Pongau District), 2.3 km N of the centre of Bischofshofen, 2 km SSE of Pfarrwerfen, Sinnhub, 47°26'25'' N, 13°12'48'' E, 540, on rotten wood and debris (on roofing shingles of Larix decidua). Leg.R. Türk (58198), 16.07.2017, det. H. Mayrhofer. DUPLA GRAECENSIA LICHENUM NR. 449.


Felix Schumm - CC BY-SA 4.0
[20300], Austria, Salzburg, Eastern Alps, Lower Tauern, Pongau region (= St. Hohann im Pongau District), 2.3 km N of the centre of Bischofshofen, 2 km SSE of Pfarrwerfen, Sinnhub, 47°26'25'' N, 13°12'48'' E, 540, on rotten wood and debris (on roofing shingles of Larix decidua). Leg.R. Türk (58198), 16.07.2017, det. H. Mayrhofer. DUPLA GRAECENSIA LICHENUM NR. 449.


Felix Schumm - CC BY-SA 4.0
[20300], Austria, Salzburg, Eastern Alps, Lower Tauern, Pongau region (= St. Hohann im Pongau District), 2.3 km N of the centre of Bischofshofen, 2 km SSE of Pfarrwerfen, Sinnhub, 47°26'25'' N, 13°12'48'' E, 540, on rotten wood and debris (on roofing shingles of Larix decidua). Leg.R. Türk (58198), 16.07.2017, det. H. Mayrhofer. DUPLA GRAECENSIA LICHENUM NR. 449.
H: homosekikaic acid (maj), f: fumarprotocetraric acid (tr)


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Lombardia, Varese, Vizzola Ticino, valle del Ticino, 162 m
23/03/2021


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Lombardia, Varese, Vizzola Ticino, valle del Ticino, 162 m
23/03/2021


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Lombardia, Varese, Vizzola Ticino, valle del Ticino, 162 m
23/03/2021


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Piemonte, Vercelli, Greggio, greto del Sesia, 166 m
23/12/2020


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Piemonte, Vercelli, Greggio, greto del Sesia, 166 m
23/12/2020


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Piemonte, Vercelli, Greggio, greto del Sesia, 166 m
23/12/2020


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Lombardia, Sondrio, Valmasino, 1047 m
08/2019


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Lombardia, Varese, Lonate Pozzolo, 220 m
10/2013


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Lombardia, Varese, Lonate Pozzolo, 220 m
10/2013


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Piemonte, Novara, Pombia, valle del Ticino, 165 m
05/2014


Gabriele Gheza - https://lichenidilombardia.home.blog
Italy, Piemonte, Vercelli, Greggio, greto del Sesia, 161 m
04/03/2016


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=544&lang=en
France, Commana


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=544&lang=en
France, Commana


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=544&lang=en
France, Commana


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=544&lang=en
France, Monthermé


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=544&lang=en
France, Monthermé


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany; Brandenburg: Niederlausitz.


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe.


Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).
UV+ white


Marta González Garcia - Centro de Estudios Micologicos Asturianos
Spain, Arrojo (Quirós-Asturias), 18-VII-2023, sobre una malla decorativa rellena de tierra, leg. M. González, det. A. R. Burgaz, MGG-36, (con ácido homosekikaico y fumarprotocetrárico).


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Biburg


Triin Aimla; Owner: University of Tartu