Fig. 4From: Annual wood formation of tropical pioneer species related to stem diametersCross-sectional view of cambium with adjacent xylem and phloem in E. diadenum with smaller stem diameter (a–c) and larger stem diameter (d–f) during the study period. PH: Phloem; Red bar: Cambial cell; Blue bar: Enlarging zone cell; MX: Mature xylem; V: Vessel. Scale bars: 200 μmBack to article page