Synandrous condition is fusion of
Filaments only
Both filaments and anthers
Anthers only
Petals
Explain types of gynoecium.
Aestivation in cassia calotropis is respectively......
The arrangements of ovules within the ovary is known as placentation. What does the term placenta refer to ? Name and draw various types of placentations in the flower as seen in $T.S$. or $V.S$.
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$:
Assertion $A$: A flower is defined as modified shoot wherein the shoot apical meristem changes to floral meristem.
Reason $R$: Internode of the shoot gets condensed to produce different floral appendages laterally at successive node instead of leaves.
In the light of the above statements, choose the correct answer from the options given below :
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?