Scytinium schraderi (Ach.) Otálora, P.M. Jørg. & Wedin

Fungal Divers., 64, 1: 291, 2013. Basionym: Parmelia schraderi Ach. - Meth. Lich., Sect. post.: 243, 1803.
Synonyms: Collema bacillare (Wallr.) Wallr.; Leptogium schraderi (Bernh.) Nyl.; Lichen schraderi Bernh. nom. illegit.
Distribution: N - VG, Frl, Ven (Nascimbene 2002), TAA (Nascimbene & al. 2022), Lomb (Ravera & al. 2017), Piem (Gheza 2020), Emil (Nimis & al. 1996, Fariselli & al. 2020). C - Tosc (Loppi & al. 1998, Putortì & al. 1999c), Umb (Genovesi & Ravera 2001, Ravera & al. 2006), Laz, Abr (Caporale & al. 2016, Di Nuzzo & al. 2021, Gheza & al. 2021), Sar. S - Pugl (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Grillo & al. 2002, Grillo & Caniglia 2004, Caniglia & Grillo 2005).
Description: Thallus subfruticose, subgelatinous when wet, glossy brown, loosely attached, of subterete, 0.3-1 mm broad, up to 5(-7) mm long, subcylindrical, ascending to erect, heavily wrinkled branches, sometimes with a few dichotomous ramifications in upper part, often forming small tufts, sometimes with a few globular, 0.06-0.1 mm wide isidia. Branches originating from small squamules, which are evident only in very young specimens. Cortex formed by regular layers of angular cells, the internal thallus parts not paraplectenchymatous. Apothecia rare, lecanorine, subterminal, strongly constricted at base, up to 1.5 mm across, with a reddish brown, concave to flat, smooth disc and a thin, but distinct, often granulose or minutely lobulate thalline margin. Proper exciple paraplectenchymatous: epithecium brownish; hymenium colourless, I+ blue; paraphyses coherent, mostly simple, the apical cells slightly swollen; hypothecium colourless. Asci 8-spored, narrowly clavate, the apex strongly thickened, the apical dome K/I+ pale blue, with a downwardly projecting K/I+ deep blue tubular structure. Ascospores 3-septate to usually submuriform, hyaline, ellipsoid and pointed at both ends (20-)23-27(-33) x (8-)10-12(-14) μm. Photobiont cyanobacterial (Nostoc, the cells in short chains). Spot test: all negative. Chemistry: without lichen substances.
Note: on calciferous rocks and soil, often on other lichens (e.g. Romjularia lurida), sometimes on terricolous mosses, below the Alpine belt.
Growth form: Fruticose

Substrata: rocks, soil, terricolous mosses, and plant debris
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: rather rare
Padanian area: extremely rare
Humid submediterranean belt: rather rare
Humid mediterranean belt: rare
Dry mediterranean belt: extremely rare

pH of the substrata:

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(info)

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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Predictive model
Herbarium samples
Index Fungorum GBIF


Pier Luigi Nimis - CC BY-SA 4.0
TSB 6957



Pier Luigi Nimis - CC BY-SA 4.0
TSB 6957



Pier Luigi Nimis - CC BY-SA 4.0
TSB 6957



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3298)
2001/11/26


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_S/Text_S/Scytinium_schraderi.htm
France, 4/3/2016 - CBMC Chavaniac-Lafayette - Haute-Loire


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Plonevez Porzay - Sainte Anne


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Plonevez Porzay - Sainte Anne


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Trefeuntec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Trefeuntec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Trefeuntec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Trefeuntec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Trefeuntec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Trefeuntec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Sainte Anne la Palud


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1088&lang=en
France, Sainte Anne la Palud