Figure 10.1–Surface (A-B) and transectional views (C-D) of Arceuthobium tsugense shoots. A: shoot tip showing opposite, paired leaves and decussate phyllotaxis, x60. B: nodal region showing stem (st), mature leaves (l) and axillary branches (ab), x25. C: leaf 300 Ám above point of attachement to stem, unlabeled arrows at points where leaf margins join, x31. D: stem at point of leaf base fusion, x31.

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