Production of male flowers does not decrease with plant size in insect-pollinated Sagittaria trifolia, contrary to predictions of size-dependent sex allocation
Bing HAN, Xiao-Fan WANG, Shuang-Quan HUANG
J Syst Evol . 2011, (5): 379 -385 .  DOI: 10.1111/j.1759-6831.2011.00141.x