Date of this Version
American Journal of Botany (October 1979) 66(9): 1,062-1,066.
Also available at https://bsapubs.onlinelibrary.wiley.com/doi/10.1002/j.1537-2197.1979.tb06322.x
Two populations of Sagittaria brevirostra from the same lake were sampled 10 years apart and yielded similar data on inflorescence structure and on numbers and ratios of male and female flowers. Larger inflorescences have relatively more male than female flowers than do smaller inflorescences. Pollination success is unrelated to inflorescence size or sex ratio within an inflorescence.