Identify $X, Y, Z$ from the figure.
$X - Y - Z$
Pedicel - gynoecium - calyx
Pedicel - androecium - corolla
Calyx - androecium - gynoecium
Pedicel - corolla - androecium
$A$ : In head inflorescence florets are arranged centrifugally.
$R$ : There always occurs two types of florets in a head.
Aestivation in which members of a whorl lie close but do not overlap
When both sexes are absent from a flower or are non-functional, the flower is said to be
Cotyledon of maize grain is called
Zygomorphy in Cassia flower is due to