What type of pollination takes place in Vallisneria?
Pollination occurs in submerged condition by water
Flowers emerge above surface of water, and pollination occurs by insects.
Flowers emerge above water surface, and pollen is carried by wind.
Male flowers are carried by water currents to female flowers at surface of water
Type of pollination in commelina is
Match the following
Column $- I$ | Column $- II$ |
$(1)$ Grasses | $(P)$ Prevent autogamy and geitonogamy |
$(2)$ Hydrilla | $(Q)$ Wind pollination |
$(3)$ Cleistogamous flower | $(R)$ Water pollination |
$(4)$ Papaya | $(S)$ Auto gamy |
What is indicated by $'A'$ and $'B'$ in the given diagram?
Pollination which occurs in closed flowers is known as