ClipArt ETC
"Successive stages in the life history of the bean seedling. AA, the surface of the ground; r, primary root; r', secondary root; c, hypocotyl; a, arch of hypocotyl; co, cotyledons." -Bergen, 1896

Bean Seed Stages

"Successive stages in the life history of the bean seedling. AA, the surface of the ground; r, primary…