Bacidia rubella Ramalinaceae
Bacidia rubella

Growth type crustose
Chemical reactions negative

On nutrient-rich bark on the trunks of mature trees on rich soils. Rare on sheltered walls and gravestones, absent from polluted areas.

Minutely granular yellow-green to greyish thallus, the granules appearing isidia-like. Flat or slightly convex sessile apothecia, pale to dark reddish-brown. Margins usually persistent, sometimes pruinose. Spores 3-7(-13) septate, 50-70 x 3-4 Ám. Pycnidia pale pink to reddish-brown.
Microscope photograph below.


Bacidia rubella


Bacidia rubella

Microscope photograph
Bacidia rubella
Bacidia rubella
On gravestone, Sturminster Marshall, Dorset. March 2014

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