This Mason Forever! photo contains
beech, beech tree, mahogany, mahogany tree, sitka spruce, and picea sitchensis.
There might also be
california white oak, valley oak, valley white oak, roble, quercus lobata, american white birch, paper birch, paperbark birch, canoe birch, betula cordifolia, betula papyrifera, cedar, and cedar tree.