Unformatted text preview: interior of the stem and secondary phloem toward the exterior of the stem (the periclinal divisions). Additional cambium cells are found between the xylem and phloem, and also divide "sideways" (the anticlinal divisions) to maintain a continual cambium cylinder as the diameter of the stem increases. Most cells produced are xylem. Cambium exhibits seasonal dormancy in areas that have distinct seasons, such as the temperate biomes. This contributes to the growth rings common in wood. In many tropical species cambium is always active, and wood lacks distinctive rings....
View Full Document
- Fall '09
- phloem, Xylem, Plant anatomy, Cambium