Ovular development and perisperm formation of Phytolacca americana (Phytolaccaceae) and their systematic significance in Caryophyllales
Hong-Chun ZHENG* Sheng-Wen MA Tuan-Yao CHAI
J Syst Evol . 2010, (5): 318 -325 .  DOI: 10.1111/j.1759-6831.2010.00082.x