蜡梅科植物叶片脉序的比较观察  

Comparative Observation on Venation of Calycanthaceae

作　　者：李烨[1] 李秉滔[1] 李镇魁[1] 

机构地区：[1]华南农业大学林学院,广州510642

出　　处：《华南农业大学学报》1999年第4期103-106,共4页Journal of South China Agricultural University

基　　金：广东省自然科学基金!940704;高校博士点基金!940501

摘　　要：对蜡梅科3属5种进行叶片脉序的比较观察，结果表明，它们的一级脉中等粗细，二级侧脉较多，与一级脉连接形成环节曲行羽状脉或网节曲行羽状脉，二级脉弧曲上升，三级脉贯穿型或结网型，叶缘末端为不完全型；网眼大小、形状不规则，发育均为不完善型．The present paper conducts the comparative observation on leaf venational morphology of 3genus and 5 species in Calycanthaceae. The result shows that 1st veins are moderately stout,2nd veins are much more, 1st veins conshtute brochido-camptodromous or reticulo-camptodromous pinnatoides with 2nd veins; 3rd veins are percurrent or reticulate, at the margin; veinlets are incomplete, areole has not a norm in shape and area, it is imperfect in system development.

关 键 词：蜡梅科 叶片脉序 比较观察 

分 类 号：Q949.747.2[生物学—植物学]