Phragmidium bulbosum
A gall-causing rust fungus that affects the leaves of various Rubus species (Blackberry, Dewberry etc.). There is no host alternation. It is usually recorded as telia, which are black and in the leaf undersides; the teliospores have 4 - 7 cells, a long pedicel and an apiculus. Spermogonia are on the leaf upperside, and minute yellow aecia underside.
Phragmidium violaceum on Bramble
Seems to be quite widely distributed in Britain, though not well recorded.
Status in Leicestershire and Rutland not known.
See species page on Plant Parasites of Europe ('Bladmineerders')
Graham Calow
Sapcote, B4114 Coventry Road
28 September 2020
rust on Bramble
sue
New Lount
04 September 2025
teliospores
Graham Calow
Sapcote, B4114 Coventry Road
28 September 2020
rust on Bramble
Graham Calow
Sapcote, Donkey Lane
22 January 2020
specimen examined -
telial stage on Bramble leaf lower surface
sue
New Lount
04 September 2025
rust on bramble
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Species profile
- Species group:
- Fungi
- Kingdom:
- Fungi
- Order:
- Pucciniales
- Family:
- Phragmidiaceae
- Records on NatureSpot:
- 106
- First record:
- 21/04/2016 (Grimes, Martin)
- Last record:
- 06/09/2025 (lemmon, roy)
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