Bordered pits on tracheids radial walls uni - seriate and bi - seriate rows 交叉場1 - 4枚杉木型紋孔。
Fibres with thin - to thick - walled , bordered pits distinct . axial parenchyma rare , diffuse and scanty paratracheal 軸向薄壁組織量少,星散狀或疏環(huán)管狀。
Fiber - tracheid an elongated cell with bordered pits found in wood , intermediate in form between a fiber and a tracheid 纖維管胞:木材中具有具緣紋孔的細長細胞,是纖維和管胞的中間類型。