Fig. 20
From: The adjustment of China endemic Heptacodium miconioides Rehd. to temperate zone of Poland
Transverse (a) and longitudinal radial (b) sections with cambium and phloem layers in the 1-year stem H1 of Heptacodium myconioides. Designations: ca – cambium; cr – crystals; cs – crystal sand; me – metaxylem vessel; pf – band of phloem fibers; ph – phloem; pi – pith; pr – pith rays; px – protoxylem; st – starch grains; tr – tracheids; ve – xylem vessel. Scale bars 100 µm