Bacidina caerulea?
Bacidina caerulea?
On a mature elder in ancient oak woodland in north Norfolk. Apothecia 0.2-0.4mm, ascospores +/- 35um, acicular, blue green tinge to the exciple and epithecium, hypothecium colourless. The nearest thing I could find was Bacidina caerulea (from a post in June last year on here). Does this look right?
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Glos lichens
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Re: Bacidina caerulea?
The habitat sounds very like the one I posted on 4 June last year - shady elder. Mine was in a very damp site, and maybe you rarely get that level of prolonged humidity in Norfolk.
The blue colour of your specimen also sounds right.
With my specimen, I was concerned about the friesiana/caerulea split, and was plumping for caerulea because I could see no brown pigments. I can't really make out the colour in your section, so a different shot with the condenser aperture more open would be helpful.
But having said all that, I have little experience with Bacidinas so I hope some one else comments too!
Juliet
The blue colour of your specimen also sounds right.
With my specimen, I was concerned about the friesiana/caerulea split, and was plumping for caerulea because I could see no brown pigments. I can't really make out the colour in your section, so a different shot with the condenser aperture more open would be helpful.
But having said all that, I have little experience with Bacidinas so I hope some one else comments too!
Juliet
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maxieput901
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Re: Bacidina caerulea?
This looks like Bacidina caerulea by the colour of the exciple. I recorded a similar lichen as B. friesiana back in 2014 which was probably prior to the split and remember the bluish tinge and the piebald apothecia. I imagine it was actually B. caerulea in fact.
It was also on elder bark and not in a particularly nutrient-rich community. I notice in LGBI3 that a liking for nutrient-enrichment is noted for B. friesiana and not for B. caerulea but perhaps the latter has not been widely enough recorded to comment yet.
It was also on elder bark and not in a particularly nutrient-rich community. I notice in LGBI3 that a liking for nutrient-enrichment is noted for B. friesiana and not for B. caerulea but perhaps the latter has not been widely enough recorded to comment yet.