Fig. 16
From: The adjustment of China endemic Heptacodium miconioides Rehd. to temperate zone of Poland
Transverse sections of Heptacodium myconioides 1-year stem: vascular bundle with visible metaxylem H1 (a) and H5 (b). Designations: ca – cambium; co – cortex; cr – crystals, druids; cw – thin and thick wood tissue cell walls; ep – epidermis; fb – band of phloem fibers; mx – metaxylem vessel;; mi – mineral inclusions; pc – passage cell; pi – pith; pf – phloem fibers; ph – phloem; pr – pith ray; px – protoxylem; rp – radial pattern; sx – secondary xylem; st – starch; tr – tracheids; ve – secondary xylem vessel. Scale bars 100 µm