Fig. 4.
Pollination of Utricularia vulgaris. a–c Behaviour of Eristalis tenax on U. vulgaris flowers. d, e Pollen grains of U. vulgaris on the surface of Eristalis tenax; bar = 50 μm
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.