Publications

a comparison of lead isotope ratios in the bark pockets and annual rings of two beech trees collected in derbyshire and south yorkshire, uk.	icp-ms analysis of the bark pockets and annual rings of two beech (fagus sylvatica l.) trees collected from longshaw, derbyshire and swinton, south yorkshire in the uk recorded differences in the (206)pb/(207)pb isotope ratio. in the longshaw sample, the (206)pb/(207)pb isotope ratio of the bark pockets ( approximately 1914-1998, 78-260 microg g(-1) pb) declined from approximately 1.16 to 1.12, whilst the annual rings (1899-1998, 0.2-2.5 microg g(-1) pb) had a (206)pb/(207)pb ratio of approximat ...	2004	15050389
phytophthora kernoviae sp. nov., an invasive pathogen causing bleeding stem lesions on forest trees and foliar necrosis of ornamentals in the uk.	a new phytophthora pathogen of trees and shrubs, previously informally designated phytophthora taxon c, is formally named here as p. kernoviae. p. kernoviae was discovered in late 2003 during surveys of woodlands in cornwall, south-west england, for the presence of another invasive pathogen, p. ramorum. p. kernoviae is self-fertile (homothallic), having plerotic oogonia, often with distinctly tapered stalks and amphigynous antheridia. it produces papillate sporangia, sometimes markedly asymmetri ...	2005	16175787