Fig. 18From: The adjustment of China endemic Heptacodium miconioides Rehd. to temperate zone of PolandThe 1-year stem H1 in Heptacodium myconioides, a the metaxylem vessel with scalariform thickening (longitudinal radial section); the part of tracheid (after maceration) of b protoxylem and c metaxylem. Designations: cr – crystals; cs – crystal sand; ty – tylosis; ve – vessel; wf – wood fibers. Scale bars 100 µmBack to article page