Fig. 3
From: Xylogenesis of Pinus radiata D. Don growing in New Zealand
(a–f). Seasonal changes in cambial zones. The dotted white line represents the approximate position of the growth ring boundary (previous season’s latewood) in the images it overlaps. “C” refers to the cambium, “E” refers to cell expansion, “T” refers to cell wall thickening, “LT” refers to cell wall thickening and lignification, “M” refers to mature xylem. These refer specifically to the higher-magnification insets. The scale bars in the insets are 100 μm