31. Its summit is covered with ash trees and shrubs. 32. The entrance to this was a hollow ash tree which gave the organisation its name. 33. However, a small amount of ash survived and put out new ash trees as well. 34. Gilmore said the trees were mostly oaks, with some maple, hickory and white ash trees . 35. Before the sun had risen, they poured water over the roots of the ash tree . 36. It has no connection with ash trees , which have never been common given the soil conditions. 37. The sacred trees at clootie wells are usually Whitethorn trees, though Ash trees are also common. 38. It lies on the clump of ash trees . 39. Ash trees are suffering from the mysterious " ash yellows " or " ash dieback ."40. On warm days, students haul out their Hibachis for barbecues beneath the Lawn's huge ash trees .