Ramularia didyma
A white mould affecting Goldilocks Buttercups, causing brown spots on the leaf wiith greyish caespituli (tufts of conidia) beneath. The coniidia are long and formed in chains
Similar species of Ramularia affect other Ranunculus, and other organisms can cause the brown leaf-patches
host 
Photograph the leaf spots and white tufts of conidia on the host. Ensure you have noted the host-plant species in your comments
on Ranunculus including R auricomus; shady places and woodlands
sue
Woodhouse Eaves, St Paul's churchyard
21 March 2026
on Goldilocks Buttercup
sue
Woodhouse Eaves, St Paul's churchyard
21 March 2026
conidia
x400, Cotton Blue stain
sue
Woodhouse Eaves, St Paul's churchyard
21 March 2026
leaf undersides; conidia emerging from stomata
sue
Woodhouse Eaves, St Paul's churchyard
21 March 2026
on underside of Goldilocks leaf
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Species profile
- Species group:
- fungus
- Kingdom:
- Fungi
- Order:
- Mycosphaerellales
- Family:
- Mycosphaerellaceae
- Records on NatureSpot:
- 1
- First record:
- 21/03/2026 (Timms, Sue)
- Last record:
- 21/03/2026 (Timms, Sue)
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% of records within its species group
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