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从木材解剖特征初拟针叶树分类系统
谢福惠;
广西农学院林学分院
摘要:
针叶树(Conifers)包括银杏纲和松杉纲的树种。根据《中国植物志》第七卷记载,现代裸子植物的种类分属于4纲9目12科71属约800种,我国产4纲8目11科41属236种,栽培1科7属51种。从国产针叶树材的解剖特征观察,银杏纲木材构造简单,仅具管胞、含晶细胞和射线细胞。管胞排列不整齐,射线薄壁细胞垂直壁无节状加厚,四隅无凹痕,轴向薄壁细胞缺,射线仅单例,所以是针叶村最原始的一个纲,应排列在松杉纲之前。
关键词:  木材解剖  松杉  木材构造  薄壁细胞  罗汉松目  银杏纲  侧柏亚科  树脂道  含晶细胞  台湾杉属  
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