Ash dieback is a severe disease that has substantially threatened European ash populations, particularly Fraxinus excelsior. The disease is caused by the invasive ascomycete fungus Hymenoscyphus ...

Under natural conditions pollen vectors act stochastically, and the order in which pollen arrives can influence seed paternity. In a number of wind-pollinated taxa, however, fertilization does not ...

Eight years ago, it was rare to hear unqualified praise for our native ash tree, Fraxinus excelsior. Yes, it was handsome, but it seeded itself around with a promiscuity that made sycamore seem ...

Ash trees, the second most abundant trees in Europe, are quickly being pushed towards extinction by the invasive emerald ash borer beetle and the fungus causing ash dieback. In Britain, ash dieback ...