Just in case you wondered where the name of my blog came from, if you remember the cambium layer of a tree is the living cells between the inner bark and the sapwood. It 's where the cell growth takes place. The cambium layer of a tree is also where the xylem and phloem is produced. The xylem is the tissue used for the tranport of water and minerals through the plant. The phloem conducts the organic food material through the tree. For obvious reasons I use the word "level" rather than the word "layer." My goal is to have "The Cambium Level" seen as a metaphor for writings and photos that are creative, life-giving, and informative.