花萼裂片边缘具小齿或有锯齿，至少一旦近先端。
Calyx segment margin denticulate or serrate, at least once near apex.
当花萼包住花瓣、萼长于瓣、花药白绿色时，多数小孢子处于四分体时期或单核早期；
When the calyx is encased by petal, the calyx is longer than the petal, and the anther is greenish white, most of the microspore is at the earlynucleate stage.
一只红颜色的小蚂蚁从下边也爬上去，她使劲用头顶的小锤子敲打花萼，听到了里边传出来一些细小的喊叫，受到了惊吓，赶紧跑开了。
A small red ants also climbed from below to her head feel like work with the small hammer beating calyx, heard inside-out small lots were startled, quickly ran away.
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