Patterns of flower morphology and structural changes during interconversion between chasmogamous and cleistogamous flowers in Viola philippica
Qiao-Xia LI, Xiao-Xia HUANG, Wen CHEN, Yong WANG, Kun SUN
Chin J Plant Ecol . 2017, (11): 1190 -1198 .  DOI: 10.17521/cjpe.2017.0153