Saxifraga x urbium D Webb (S. umbrosa L. x spathularis Brot.)
First record: PD Sell, 1966
34
Disturbed area of Kneesworth chalk pit, 351.426, petals with 4-5 red spots & 1-2 yellow spots, PD Sell 66/10, 13.6.1966, CGE.
45
Cherry Hinton tip, 482.574, GMS Easy, 1972.
