Figure 10.4Transverse (A) and longitudinal (B-F) sections of stems (A-C), leaf (D), and fruits (E-F) of Arceuthobium tsugense (A-B), A. globosum (C-D), and A. cyanocarpum (E-F). A: vascular bundle showing xylem (x), phloem parenchyma (ph), phloem fibers (pf), and cortex (co), x100. B: vascular bundle, x100. C: primary xylem (x) showing simple perforation (p) and breaks (b) in xylem continuity, x480. D-F: graniferous tracheary elements, granules at unlabeled arrows (D, x400; E-F, x250).
