Raphides are crystals of

In pea plant $........$ inflorescence and $........$ flower is present.

Triticum durum is ..... (in $n$)

Identify the correct terms for the following analogy-based questions:
$(i)$ Sunflower : Alternate phyllotaxy :: Alstonia : ...........
$(ii)$ Datura : Actinomorphic flower :: Bean : ............

To which class does the plant shown in the figure belong?

Which of the following statements is correct?