油细胞和粘液细胞（腔）4种分布类型的划分支持樟科两个亚科的划分。
而在人工型林带中，乔木层是以桑科、樟科、大戟科的树种为主。
1·The oil cells and mucilage cells in the leaves of 13 species in 5 genera (Lauraceae) were comparatively studied with the methods of tissue clearing, paraffin sectioning and semi-thick sectioning.
利用组织透明法、石蜡制片法和薄切片法比较研究了樟科5属13种植物叶片中油细胞和粘液细胞的分布和结构。
2·Of these species the majority belong to the families of Magnoliaceae, Lauraceae, Rosaceae, Rutaceae, Oleaceae, and Leguminosae .
种类较多的科有术兰科、樟科、蔷薇科、芸香料，木犀科， 豆科等。
3·CTAB method, low pH medium with high salt method (LPHS), and urea method were used and improved to extract high-quality DNA from Lauraceae plant Cinnamomum cassia Presl. , C. zeylanicum and C.
为了从富含次生代谢物的樟科植物肉桂、锡兰肉桂、阴香中获得高质量DNA ，研究和改进了CTAB法、高盐低pH法和尿素法。