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Bacidia rubella (Hoffm.) Massal.

Synonyms:

Family: RAMALINACEAE

Habitat: Ubiquitous

Description

   Thallus crustose, effuse, not well delimited, consisting of small granules 60-120 µm diam., aspect often isidiate-like, grey-green when dry to yellow-green or green when moist. Apothecia variable in number, sometimes clustered, sessile and usually distinctly constricted below, 0,5-1,2 mm diam., discs flat to slightly convex, pale to dark red-brown, thick margin, smooth or white pruinose, hyaline or pale orange-red, in general persistent. Ascospores needle-shaped (acicular), 3-7(13)-septate, 40-70 x 2,5-4 µm. Photobiont : Chlorophycea. Chemical spot tests negative. Rare in our prospection area, on trunks of old or wounded trees, mainly aligned or in parklands  (Fraxinus, Platanus, Ulmus, etc).*







Bacidia rubella Ardennes 1
Jacques HAINE



Bacidia rubella Ardennes 2
Jacques HAINE



Bacidia rubella Ardennes 3
Jacques HAINE



Bacidia rubella Sur Fraxinus Loc'h 1
Bernard BOUFFINIER



Bacidia rubella Sur Fraxinus Loc'h 2
Bernard BOUFFINIER



Bacidia rubella Sur Fraxinus Loc'h 3
Bernard BOUFFINIER



Bacidia rubella Manosque 1
Bernard BOUFFINIER



Bacidia rubella Manosque 2
Bernard BOUFFINIER



Bacidia rubella Manosque 3
Bernard BOUFFINIER



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