corolla tube

The results showed that chlorogenic acid mainly distributed in the epidermis cells and the next layers cells of outer epidermis in calyx tube and corolla tube;

结果显示：绿原酸主要分布于萼筒和花冠筒的内、外表皮细胞及外表皮下的几层细胞中；

Corolla white or rose to purple-red, tube glabrous or hairy annulate inside;

红色的花冠白色或枚瑰色到紫色，有环的筒部无毛或有毛在里面；

Corolla white, yellow, green, or pink, rarely with a red tube, salverform or campanulate;

花冠白色，黄，绿色，或粉红色，很少具一红色的筒部，高脚碟状的或钟状；

There are 16 bundles in calyx tube and 12 bundles in corolla tube, the calyx and corolla bundles are different in origin.

花萼筒具16条维管束，花冠筒具12条维管束，二者的维管束是独立发生的。

Campestris regarding: ( 1) The proportion of the corolla lobe's length to the corolla tube's;

我们的标本与前人描述的差别为：（1）花冠裂片与花冠管长度比例；