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目的:建立尖尾芋和海芋叶形态-脉序图谱鉴别方法,为药材鉴别、质量标准制定及深层次开发利用提供新的资料。方法:在植物地理学考察和原植物鉴定的基础上,以叶形态-脉序图谱法观察尖尾芋和海芋叶的形态与各级脉序。结果:尖尾芋和海芋的主要区别点在于尖尾芋叶片宽卵状心形,叶基心形或圆形,先端骤尖,侧脉5～8对,侧脉整体走向为斜向上方并且向中肋靠拢;海芋叶片阔卵形,叶基耳形,先端短尖,侧脉9～12对,侧脉整体走向趋于向左右两侧延伸。结论:叶形态-脉序图谱可作为尖尾芋和海芋的主要鉴别特征之一,用于其药材识别和质量标准的制定。
OBJECTIVE: To establish a method for identification of the morphological-pulse sequence patterns of Taro and Alsophila, providing new information for the identification of medicinal materials, formulation of quality standards and deep development and utilization. Methods: Based on the phylogeography and the identification of the original plants, the leaf morphological characteristics and the pulse sequences at different levels were observed by leaf morphological-pulse-sequence mapping. Results: The main difference between Taro taro and Alocasia was that the leaves of Taro were broadly ovate-heart-shaped with leaf-shaped heart-shaped or circular leaflets with apex acute and lateral veins of 5 to 8 pairs. The entire lateral veins were obliquely upward And close to the rib; Alocasia leaves broad oval, leaf auricles, apex short, lateral veins 9 to 12 pairs, the lateral veins tend to extend to the left and right sides. CONCLUSION: Leaf morphological-pulse sequence mapping can be used as one of the main distinguishing features of Taro and Alocasia so that it can be used for identification of medicinal herbs and establishment of quality standards.