Corolla in China rose are :
$5$ , gamopetalous, contorted
$5$ , gamopetalous valvate
$5$ , polypetalous valvate
$5$ , polypetalous, twisted
Explain structure of stamen.
The arrangement of ovules within the ovary is known as placentation. What does the term placenta refer to ? Draw various types of placentations in the flower as seen in $\mathrm{TS}$ and $\mathrm{VS}$.
Polydelphous stamen found in .............
A longitudinal or vertical section of the flower indicates
The arrangement of .......... within the ovary is known as placentation.