A beech tree on the Hood River Library lawn will be recognized as a City of Hood River heritage tree on Monday, May 16, which is Love a Tree Day.  Hood River Tree Committee members say this particular tree is perhaps the best known tree in the city.   Mayor Paul Blackburn and library director Buzzy Nielsen will tie a ribbon around the beech tree’s massive trunk at 3 p.m. on Monday.  The heritage tree program is one focus of the city’s Tree Committee, which is a citizen advisory committee to the City Council and City staff.  Heritage trees are defined as ones accessible to the public and healthy.  Nielsen says the library’s beech tree “has been there at least 100 years.”