Comparative study on wood anatomical structure of 14 species belonging to 10 genera of Lauraceae.

The wood anatomy features of 14 species belonging to 10 genera of Lauraceae were investigated using light microscope and scanning electron microscope.The wood structures of Lauraceae were characterized by most diffuse porous(ring porous in sassafras);most pores solitary,less multiple and cluster pores;simple and scalariform perforation with few bars;most solitary pore;alternate intervessel pitting;most of rays multiseriate,less uniseriate;all of rays heterogeneous,mostly heterogeneous Ⅲ and Ⅱ type rays;most of axial parenchyma paratracheal type,less banded or marginal type;oil cell and mucilage cell in axial parenchyma cell or ray cell;mostly fiber tracheid and libriform fiber,less septate fiber.Judging from the ralationships between wood structure and systematic anatomy,the wood structures laurel family were transition.