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| Record Summary | Uredia and telia, on underside of sensecent basal leaves of Prickly Sowthistle |
| Found as | Uredia (II) |
| Date | 19 August 2007 |
| Associated organism | Sonchus asper |
| OS grid ref | OSGR: SU56 |
| Lat/Lon | 51° 20’ N, 1° 20’ W |
| Vice County | Berks, VC no: 22 |
| Country | England |
| Voucher | 19 Aug 2007[E] (Please quote this in any queries about this record) |
Notes:
Small punctate, pale orange-brown uredia, bursting through lower epidermis, each surrounded by a brown ring of paraphyses. Uredospores ±cylindric-ellipsoid, echinulate, thick-walled.
Telia similar but darker, dark brown to black. Teliospores: single-celled (mesospores), shortly ellipsoid, mid brown, stalked, with many pores.
There were also a few larger subcuticular uredia which were smooth and lacked the palisade of dark paraphyses. These might well be a different species of rust.
The following literature was used to identify this find:
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