Vinca fungi

Plant diseases
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markwilson
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Vinca fungi

Post by markwilson » Sun May 31, 2020 9:06 pm

I am not sure about this but I think this may be Puccinia vincae being parasitised by Tuberculina sbrozzii. More photos at https://www.ispotnature.org/communities ... for-2-here. If so according to NBN map both new for S Somerset (VC5). Any ideas Thanks

Mark
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Chris Yeates
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Location: Huddersfield, West Yorkshire

Re: Vinca fungi

Post by Chris Yeates » Mon Jun 15, 2020 12:47 pm

Definitely P. vincae, but I can't see evidence of the Tuberculina; only the plant epidermis covering the immature sori (shiny!) or flanking the mature ones. You need to look for a sort of dull bloom covering mature sori. See the attached image - (top left), not a very good example, I must update this species . . .
Tuberculina sbrozzii 0a.jpg
But do keep looking, I suspect the Tuberculina is not uncommon, later in the season may be more productive.
Cheers
Chris
"You must know it's right, the spore is on the wind tonight"
Steely Dan - "Rose Darling"

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