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Moelleropsis nebulosa (Hoffm.) Gyeln.

Synonyms:

Family: PANNARIACEAE

Habitat: Ubiquitous

Description

   Thallus more or less thick, cracked, coarsely granular, granules  to 0.03-0.1 mm diam., rounded or more or less elongate,  usually crowded, grey-bluish to blackish, grey-bronze. Apothecia sessile, to 1 mm diam., inserted between granules, disc flat to convex, orange, brown-red, exciple granular, grey. Ascii 8-spored, 60-80 x 15-25 µm according to our measures.  Ascospores simple, ellipsoid, with a single oil droplet, 15-20 x 6-10 µm according to literature, 14-20 x 5-7(9) µm according to our measures. Photobiont: Nostoc. Chemical spot tests negative. Not especially maritime, may be found on bare sandy and recently disturbed soils in the entire aerohaline zone, notably on ground in very exposed low heathlands in capes and heads of Brittany. When dry, this species goes unnoticed on grounds and is distinctly visible after raining. N.B. Not to be confused with Protopannaria pezizoides that is squamulose with larger and granulose ascospores, and with Vahliella atlantica which is similar to the naked eyes, coastal, usually darker grey without blue tinge, with structures suggesting coralloid isidia, brown apothecia (and not orange) and ascospores containing several oil droplets.







Moelleropsis nebulosa Pointe du Van 1
Alain GERAULT



Moelleropsis nebulosa Pointe du Van 2
Alain GERAULT



Moelleropsis nebulosa Pointe du Van 4
Alain GERAULT



Moelleropsis nebulosa Pointe du Van
Michel DAVID



Moelleropsis nebulosa Pointe de Pen Hir 1
Michel DAVID



Moelleropsis nebulosa Pointe de Pen Hir
Michel DAVID



Moelleropsis nebulosa Pointe de Pen Hir 3
Bernard BOUFFINIER



Moelleropsis nebulosa Pointe de Pen Hir 2
Michel DAVID



Moelleropsis nebulosa Pointe de Pen Hir 4
Michel DAVID



Moelleropsis nebulosa Pointe de Pen-Hir 5
Bernard BOUFFINIER



Moelleropsis nebulosa Pointe de Pen-Hir 6
Bernard BOUFFINIER



Moelleropsis nebulosa Pointe de Pen-Hir 7
Bernard BOUFFINIER



Moelleropsis nebulosa Apothécies (avec Solenopsora vulturiensis) Pointe du Van 3
Jacques HAINE



Moelleropsis nebulosa Coupe apothécie Pointe du Van 5
Jacques HAINE



Moelleropsis nebulosa Asques Rouge Congo Pointe du Van 6
Jacques HAINE



Moelleropsis nebulosa Asque Bleu Coton Pointe du Van 7
Jacques HAINE



Moelleropsis nebulosa Spores Rouge Congo Pointe du Van 8
Jacques HAINE



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