Phragmidium is a genus of rust fungus that typically infects plant species in the family Rosaceae. It is characterised by having stalked teliospores borne on telia each having a row of four or more cells. All species have a caeoma which is a diffuse aecidium lacking a peridium.[2]
There are a number of species of Phragmidium, most of which are restricted to one or a few host species. Examples include:
Phragmidium acuminatum on Rubus saxatile
Phragmidium bulbosum on Rubus fruticosus and Rubeus caesius
Phragmidium mucronatum
Phragmidium sterilis on Potentilla sterilis
Phragmidium potentillae on Potentilla anglica
Phragmidium rosae-pimpinellifoliae
Phragmidium rubi-idaei on raspberry
Phragmidium tuberculatum on some rose cultivars
Phragmidium violaceum on cultivated blackberry and loganberry
Possibly the most commonly encountered is P. mucronatum, found on most species of wild roses including Rosa canina and Rosa arvensis.[3]
^Cite error: The named reference urlMycoBank: Phragmidium was invoked but never defined (see the help page).
^Fungi. Lilian E Hawker, 1966, Hutchinson University Library
^Henderson, Douglas M. (2001). A Checklist of Rust Fungi of the British Isles. British Mycological Society. ISBN 978-0-9527704-4-2.[page needed]
Phragmidium is a genus of rust fungus that typically infects plant species in the family Rosaceae. It is characterised by having stalked teliospores borne...
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