Identification Characters of Leaflet Morphological-venation Pattern of Dimocarpus Longan with Its Confused Herb Litchi Chinensis
10.11842/wst.2013.07.012
- VernacularTitle:龙眼叶与其易淆品荔枝叶的叶形态-脉序图谱鉴别特征
- Author:
Jing ZENG
;
He WEI
;
Yuekui LIAO
;
Baozuo HE
- Publication Type:Journal Article
- Keywords:
Leaflets of Dimocarpus longan;
leaflets of Litchi chinensis;
leaflet morphological structure;
venation pattern;
Chinese herb identification
- From:
World Science and Technology-Modernization of Traditional Chinese Medicine
2013;(7):1557-1561
- CountryChina
- Language:Chinese
-
Abstract:
This study was aimed to establish an identification method between leaflets of Dimocarpus longan and leaflets of Litchi chinensis. The leaflet morphological-venation pattern (LMVP) and quantitative analysis were reliable identification method for Chinese herbs. The results showed that the main differences of leaflets of Dimocarpus lon-gan were the eucamptodromous camptodromous pinnate venation; the secondary veins gradually changed into little near margin and a few brochidodromous; the type of tertiary vein was percurrent or reticulate. The main differences of leaflets of Litchi chinensis were brochidodromous camptodromous pinnate venation; the course of the secondary veins was sinuous or zigzag, and abruptly curved then linked; the type of tertiary vein was reticulate. With three groups of key differences mentioned above, both plants can be successfully identified from each other. The accuracy of identification results (AC) was from 98.1% to 100%. The agreement rate for observation (ARO) was from 98.5% to 100%. And the Kappa value was from 0.97 to 1.00. It was concluded that the established LMVP is simple, rapid, e-conomic and reliable in the identification between leaflets of Dimoc arp us longan and leaflets of its confused herb Litchi chinensis.
