A floral organ moving like a caterpillar for pollinating
Zhong-Jian LIU, Li-Jun CHEN, Ke-Wei LIU, Li-Qiang LI, Wen-Hui RAO
J Syst Evol . 2010, (2): 102 -108 .  DOI: 10.1111/j.1759-6831.2009.00065.x