Rhizocarpon oederi (Ach.) Körb.
Parerga Lichenol.: 232, 1861. Basionym: Lecidea oederi Ach. - Meth. Lich.: 49. 1803.
Synonyms: Aspicilia oederi (Ach.) A. Massal.; Lecidea atroalba var. oxydata Fr.; Lichen koenigii Retz.; Rhizocarpon petraeum var. oederi (Ach.) Körb.
Distribution: N - Frl, TAA, Lomb, Piem (Isocrono & al. 2004, Favero-Longo & al. 2006b), VA (Piervittori & Isocrono 1999), Emil (Fariselli & al. 2020).
Description: Thallus crustose, episubstratic, rust-red to orange-red, ochre-orange in shade-forms, rimose-areolate, without a distinct prothallus, forming patches 2-5(-10) cm in diam. Areoles angular, contiguous, 0.4-0.8 mm wide, flat to convex. Medulla I+ pale blue. Apothecia lecideine, black, sessile, irregular in outline, 0.3-0.7 mm across, with a concave to flat, often umbonate or gyrose disc, and a persistent proper margin. Exciple brown-black to carbonized in outer part, paler within, K-; epithecium bluish- or greenish black, K-; hymenium colourless or pale green in upper part, 80-120 µm high, sometimes interrupted by sterile stripes corresponding to the ridges on the apothecial disc; hypothecium dark brown to black, K-. Asci 8-spored, clavate fissitunicate, with a well-developed tholus which is K/I- in lower part and K/I+ blue at apex, without ocular chamber, Rhizocarpon-type. Ascospores 3-septate to submuriform, hyaline, broadly ellipsoid, 12-18 x 3-11 µm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: no lichen substances in thallus.Note: a mainly cool-temperate species with a wide but scattered distribution, found on metal-rich siliceous rocks, mostly at low elevations.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Species of metal-rich rocks
Pioneer species
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Lac du Drennec
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Lac du Drennec
Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Roc'h Tredudon
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
Belgium, Monthermé
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
Belgium, Monthermé
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
Belgium, Monthermé
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Species of metal-rich rocks
Pioneer species
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
Index Fungorum
GBIF
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Lac du Drennec
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Lac du Drennec
Alain Gerault - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Roc'h Tredudon
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
France, Commana
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
Belgium, Monthermé
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=405&lang=en
Belgium, Monthermé
