Urocystis ranunculi - a smut on Buttercup

Plant diseases
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Steve
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Posts: 461
Joined: Sun May 17, 2015 8:59 pm
Location: Sheffield, Yorkshire

Urocystis ranunculi - a smut on Buttercup

Post by Steve » Tue Aug 25, 2015 4:13 pm

Hi,
I spotted this in a quiet corner of the Longshaw Estate - as pale blisters on Creeping Buttercup. It's another first record for Longshaw. We have 11 local records for the Sheffield area, all supplied by the local plant gall recorder, with whom I exchange fungi gall records. There are 188 FRDBI records.
The spore balls consist of dark spores surrounded by pale ones - quite a spooky fungus as it simply bursts the stem apart - I was quite amazed to spot this :o , but very happy with the easy ID of Urocystsis ranunculi - I hope... :lol:
Steve
Attachments
1.jpg
Blisters, spore ball inset
2.jpg
Macro photos
3 oila.jpg
Spore balls focus 1
4 oilb.jpg
Spore balls focus 2
Last edited by Steve on Wed Aug 26, 2015 9:34 am, edited 1 time in total.

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

Re: Urocystsis ranunculi - a smut on Buttercup

Post by Chris Yeates » Tue Aug 25, 2015 7:02 pm

ID perfectly fine Steve - you might care to edit the name though ;)
The pale cells are sterile, surrounding the actual (pigmented) spores - I must try and find out what their purpose is thought to be . . .
best wishes
Chris
"You must know it's right, the spore is on the wind tonight"
Steely Dan - "Rose Darling"

Steve
Frequent user
Posts: 461
Joined: Sun May 17, 2015 8:59 pm
Location: Sheffield, Yorkshire

Re: Urocystis ranunculi - a smut on Buttercup

Post by Steve » Wed Aug 26, 2015 9:34 am

Name corrected!
Cheers

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