Ed Shay’s ten-foot-tall bronze “Acadian Gyro” entered deCordova Sculpture park about three decades ago. Letha Wilson’s nearly as tall cor-ten steel sculpture “Hawaii California Steel(Figure/Ground)” came in about two years ago. Until now I hadn’t  considered their common key elements: 1) attention to the forms of leaves and branches, 2) expressive rendering of those forms in durable metals ( bronze and steel) 3)relation to the seasonally changing foliage of nearby trees. My awareness grew from posting about four more obviously tree-related artworks in the park and noting further connections. Though I have been a volunteer guide in the park for almost two decades, this focus led me deeper into resources with heightened reasons to share them.