Fig. 19From: The adjustment of China endemic Heptacodium miconioides Rehd. to temperate zone of PolandThe radial section of the 1-year stem H4 in Heptacodium myconioides with the visible band of vessels. Designations: orange line – the border of the metaxylem; lemon line – the additional rows of vessels in secondary xylem; ar – the area between lines with single vessels. Scale bar 200 µmBack to article page