Oval discs of ‘bad skin’ on dead stems of Bluebells

Please try to include photos to show all parts of the fungus, eg top, stem, and gills.
Note any smells, and associated trees or plants (eg oak, birch). A spore print can be very useful.
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Aciauda
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Posts: 26
Joined: Mon May 18, 2015 3:41 pm

Oval discs of ‘bad skin’ on dead stems of Bluebells

Post by Aciauda » Sat Aug 04, 2018 2:57 pm

These areas of spotty greyish skin looked, with the magnifying glass, to be made up of tiny tufts of hair, shown here at different magnifications with dissecting microscope.
01 15 on Bluebell (2).jpg
Discoloured bit 1
02 15 on Bluebell (3).jpg
Discoloured bit 2
03 15 on Bluebell (4).jpg
Discoloured bit 3
Under the compound microscope with x 10 objective the tufts are discrete
04 15 on Bluebell (5).jpg
Under x10 objective
The hyphae that make them up and the spores look like this. The spores are 18x6 μm.
05 15 on Bluebell (1).jpg
Hyphae and spores 1
06 1 15 on Bluebell (9).jpg
Hyphae and spores 2
07 15 on Bluebell (6).jpg
Hyphae and spores 3
I have not been able to find this with any certainty in E&E so please help.

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Chris Yeates
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Joined: Tue May 26, 2015 7:01 pm
Location: Huddersfield, West Yorkshire

Re: Oval discs of ‘bad skin’ on dead stems of Bluebells

Post by Chris Yeates » Mon Aug 13, 2018 1:18 pm

Hi

Cladosporium sp. - probably one of the commonest genera on the planet, and the commonest genus encountered in the air-spora. A secondary coloniser, one often finds them as a contaminent of collections of other fungi.

cheers
Chris
"You must know it's right, the spore is on the wind tonight"
Steely Dan - "Rose Darling"

Aciauda
Regular user
Posts: 26
Joined: Mon May 18, 2015 3:41 pm

Re: Oval discs of ‘bad skin’ on dead stems of Bluebells

Post by Aciauda » Tue Sep 04, 2018 5:04 pm

Many thanks Chris. I have just come back to this much too late but I need to tell you I am very grateful for your help
Archie

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